A market researcher, having collected data on breakfast cereal expenditures by families with one, two, three, four, or five children living at home, plans to use an ordinary regression model to estimate the mean expenditures at each of these five family size levels. However, the researcher is undecided between fitting a linear or a quadratic regression model, and the data do not give clear evidence in favor of one model or the other. A colleague suggests: "For your purposes, you might simply use an ANOVA model." Is this a useful suggestion? Explain.

Answers

Answer 1

Answer:

Yes it is a useful suggestion

Step-by-step explanation:

Using the ANOVA model is a good idea because using it would give allowance For us to compare the five means of the five different family sizes. By this, during investigation there would be no confusion as to if a quadratic or linear relationship exists between the variables family size and breakfast cereal expenditure.

We would be comparing the mean expenditure of food of these 5 different family size levels so anova is useful.

Answer 2

Answer and Step-by-step explanation:

ANOVA model is mathematical model describe relationship between response and treatment.

One way ANOVA is given by:

YIJ = µ + Ti +Єij

Where, yij represent jth observation on ith treatment.

In this question, researcher collected data on the breakfast expenditure of a family whose size is five.

Yes, we can use ANOVA model. ANOVA can be used even if there is quadratic nonlinear relationship between expenditure and family size.

Since, the family size is five; we have to compare their mean expenditure on food.

The ANOVA one way model is:

YIJ = µ + Ti +Єij

For i=1, 2,3,4,5 and j= 1, 2,3,4,5

With hypothesis,

H01 : µ1 are equal.

H11 : at least two i not equal to j.


Related Questions

find the mean median and mode for 3,5,2,4,3,4,3,5,16

Answers

Answer:

I think it will be 3....?

Answer:

mean 5

median 4

mode 3

Step-by-step explanation:

The mean is the average, or add up all the numbers and divide by the number of numbers

(3+5+2+4+3+4+3+5+16)/9

45/9 = 5

The median is the middle number when listed from smallest to largest

2,3,3,3,4,4,5,5,16

Since there are 9 numbers, the middle is the 5th number

2,3,3,3   ,4,     4,5,5,16

The median is 4

The mode is the number that appears most often which is 3 since it appears 3 times

its easy question i promise lol

Answers

Answer:

Step-by-step explanation:

sure

You and a friend play a video game. You havr a final svore of 50 points, and your friend has a final score I -21 points. By how many points did you win?

Answers

Answer: 71
Explanation: From -21 you need to add +21 to get to 0. Then from 0 to 50 you add +50. So 21+50=71


Round 0.8 to the nearest thousandth

Answers

Answer:

it is still 0.80

Step-by-step explanation:

you don't need to round, just add a zero

A package of six pairs of socks costs $18.99. How much does each pair cost?

Answers

Answer: $3.17

Step-by-step explanation:

18.99/6=3.165

Answer:

3.165

Step-by-step explanation:

All you had to do was divide 18.99 and 6


Wanda claims that congruent triangles have equal perimeters Is she correct? Explain

Answers

Yes each side of a triangle has the same length as it's corresponding side in a congruent triangle

Find the distance between (-7, -2) and (11,3). Write your answer to one decimal.
Your answer

Answers

Answer:

The answer is 18.7 units

Step-by-step explanation:

The distance between two points can be found by using the formula

[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-7, -2) and (11,3).

The distance between them is

[tex]d = \sqrt{( { - 7 - 11})^{2} + ({ - 2 - 3})^{2} } \\ = \sqrt{ ({ - 18})^{2} + ( { - 5})^{2} } \\ = \sqrt{324 + 25} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = \sqrt{349} \: \: \: \: \: \: \: \: \\ = 18.681541692... \: \: \: \: \: [/tex]

We have the final answer as

18.7 units to the one decimal place

Hope this helps you

Answer:

68

Step-by-step explanation:

Rob mixed 3.7 grams of salt into a pot of soup he was cooking. Before he served the soup, Rob added 0.5 grams of salt. How much salt did Rob put into the soup in all?

Answers

Answer:

4.2 grams in total

Step-by-step explanation:

Remember to line up the decimal point when adding numbers that contain decimals.

 3.7

+0.5

_______

 4.2                    

10. A person walks 12.0 m east, then turns and goes 5.00 m west, then turns and goes back 2.00 m east.
a) What is the person's distance?
b) What is the person's displacement?

Answers

Step-by-step explanation:

Given that,

A person walks 12.0 m east, then turns and goes 5.00 m west, then turns and goes back 2.00 m east.

(a) Distance is equal to total path covered during the entire journey.

Distance = 12 + 5 +2

Distance = 19 m

(b) The shortest path covered is equal to the shortest path traveled. Let east is positive and west is negative. So,

Displacement = 12 +(-5) +2

Displacement = 9 m

The breakfast cafe uses 3 1/4 lb of coffee per day. How much coffee does it use ina 7 day week?​

Answers

Quantity of coffee used per day by breakfast cafe =

[tex] = 3 \frac{1}{4} \: lb[/tex]

Quantity of coffee it will use in a seven day week =

[tex] = 3 \frac{1}{4} \times 7[/tex]

[tex] = \frac{(4 \times 3) + 1}{4} \times 7[/tex]

[tex] = \frac{13}{4} \times \frac{7}{1} [/tex]

[tex] = \frac{91}{4} [/tex]

[tex] = 22 \frac{3}{4} \: lb[/tex]

Therefore , a breakfast cafe will use =

[tex]22 \frac{3}{4} \: lb \: of \: coffee \: in \: a \: seven \: day \: week \: .[/tex]

im stuck on this question, plz help
Manuel runs a 100-meter race. 6 seconds after the race started Manuel is 40 meters from the starting line and reaches his max speed; he runs at this max speed for the rest of the race. Manuel notices that he is 75 meters from the starting line 11 seconds after the race started.
Suppose Manuel runs for an additional z seconds after reaching his max speed...
What is Manuel's distance from the starting line 6+z seconds after the race started?
What is Manuel's distance from the starting line x seconds after the race started (provided x≥6x)?

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

40 metres covered in 6 seconds

Max speed attained after 6seconds

75 meters covered after 11 seconds

Average Speed for first 40 meters :

Speed = distance / time

Speed = 40m / 6s

Speed = 6.67m/s

To obtain the maximum speed :

Next (75 - 40) meters = 35 meters was covered in (11 - 6)seconds = 5 seconds

Speed at this point is maximum :

Hence, maximum speed = (35m / 5s) = 7m/s

Suppose, Manuel runs for an additional z seconds after reaching max speed :

Distance from starting line 6+z seconds after race started?

Distance after 6 seconds = 40 metres

Distance after z seconds = 7 * z

Total distance = (40 + 7z)

What is Manuel's distance from the starting line x seconds after the race started (provided x≥6x)?

Distance for first 6 seconds = 40 meters + distance covered after 6 seconds = (7 * (x-6))

40 + 7(x - 6)

WILL GIVE BRAINLIEST Use the drawing tools to form the correct answer on the grid. Caroline is planting flowers in her garden. She plants her first 7 flowers in 4 minutes. After 12 minutes, she has planted 21 different flowers. Plot four data points and the line of best fit to model how long it takes Caroline to plant flowers.​

Answers

I cannot use the drawing tools. But, i can explain it to you.

Make a point where it can be at 7 and 4.

Basically, put a point 4 or 5 blocks right of the 7.

Next, put a point where it can be at 21 and 12.

Basically, put a point 11 or 12 block right of the 21.

Answer: You will plot (0,0) which is the beginning, then plot (4,7), then if you multiply 7 times 2 you get 14 flowers. With those 14 flowers you will put them on (8,14) 8 minutes 14 flowers, lastly you will put 12 minutes and 21 flowers down which will be (12,21). since there are 21 flowers and 12 minutes.

Step-by-step explanation:

WILL GIVE BRAINLIEST Use the drawing tools to form the correct answer on the grid. Caroline is planting flowers in her garden. She plants her first 7 flowers in 4 minutes. After 12 minutes, she has planted 21 different flowers. Plot four data points and the line of best fit to model how long it takes Caroline to plant flowers.​​

Answers

I cannot use the drawing tools. But, i can explain it to you.

Make a point where it can be at 7 and 4.

Basically, put a point 4 or 5 blocks right of the 7.

Next, put a point where it can be at 21 and 12.

Basically, put a point 11 or 12 block right of the 21.

Answer:

You will plot (0,0) which is the beginning, then plot (4,7), then if you multiply 7 times 2 you get 14 flowers. With those 14 flowers you will put them on (8,14) 8 minutes 14 flowers, lastly you will put 12 minutes and 21 flowers down which will be (12,21). since there are 21 flowers and 12 minutes.

Step-by-step explanation:

Four more than five times a number is 59. What is the number ?

Answers

Answer:

(11 x 5) + 4 = 59

Step-by-step explanation:

You take whats in the parentheses, (11 x 5) and multiply.

You get a result of 55, then add your 4.

Why is subtracting an expression similar to distributing a –1?
Please answer quick!!

Answers

Take the expression 2x - (x - 3). We know we can multiply everything by 1 and not change it; we know that if a variable does not have a coefficient with it, we can write a 1 beside it. That means we can write our expression as
2x - 1(x - 3). This helps us see the distributive property applies here:
2x - 1x - 1(-3)
2x - 1x - -3
2x - 1x + 3
1x + 3 = x + 3

Solve for h. h(h − 2) = 0

Answers

Step-by-step explanation:

h=2

the answer would be x=0,2

Explicación del ejercicio 3y=-12+3x

Answers

Simplifying
3y = 12 + 3x

Solving
3y = 12 + 3x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Divide each side by '3'.
y = 4 + x

Simplifying
y = 4 + x

Simplify the expression

1x(-2+3)x(-9+7)=

Answers

Answer:

x=13

Step-by-step explanation:

hehe calculator boy

Answer:

-2x²

Step-by-step explanation:

Chic-ken Rulez is a food vendor at the state fair that only sells complete box meals which includes a sandwich (chicken or turkey), fries, and drink. Customers walk up to the counter at Chic-ken Rulez and place an order.The counter employee enters the order into the system which is displayed on several screens for all other employees to see the items that need to be made. In the kitchen sandwich makers assemble the selected sandwich once it displays on the order screen. The fry master will cook, salt, and scoop the ordered fries into a cup. Meanwhile, the employee that took the order, will prepare the requested drink. Once the sandwich and fries are complete, they are place in a window where the counter employee places all items in a box and delivers it to the customer. Taking the order and entering it into the system takes 5 minutes. Once entered, the display screens instantly show the items to be made. The counter employee then takes an average of 3 minutes to make a drink. On average, it takes sandwich makers 8 minutes to complete a sandwich and place in the pick-up window. The fry maker takes 12 minutes on average to complete a cup of fries and place in the pick-up window. It takes the counter employee 10 minutes to box all items and hand to customer for delivery. All times listed are flow times for each activity and include the effects of waiting.1) Draw a process map/flowchart for the above process and Label it Process #1Chic-ken Rulez wishes to improve the process by reducing the time to deliver a meal box. Customers often make an order and leave the counter area to find seating. This is the root cause for delivery times being so long because on average a customer's meal order is called 3 times before it is actually picked up which completes delivery.To reduce the process time, Chic-ken Rulez is going to provide customers with a miniature plastic chicken with a GPS tracker inside at the time of the order. The order process is the same except now the box and delivery activity will be two separate activities. Delivery is now performed by food runners that use a handheld device to locate the GPS plastic chickens, collect the plastic chicken for re-use, and deliver a customer’s ordered meal box.It now takes 2 minutes to box a meal. Based on preliminary tests, the average time to locate a GPS plastic chicken and deliver a meal box in the food area takes 7 minutes.2) Draw a process map/flowchart for the above modified process and Label it Process #2

Answers

Answer:

This answer was provided through an attachment since it basically involves drawing a flow diagram.

Step-by-step explanation:

the question requires that we draw a flow diagram of the time and process of taking an order, making a drink, fixing a sandwich and also making fries.

please check the attachment for the processes #1 and #2.

the net process time minute for process#1

5+12+10 = 27 minutes

the net process time minute for process# 2

5 + 12 + 2 + 7

= 26 minutes

What is the definition of mean

Answers

Answer:intend (something) to occur or be the case.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Mean is an essential concept in mathematics and statistics. The mean is the average or the most common value in a collection of numbers.

How to calculate mean?

There are different ways of measuring the central tendency of a set of values. There are multiple ways to calculate the mean.

Arithmetic mean is the total of the sum of all values in a collection of numbers divided by the number of numbers in a collection. It is calculated in the following way:

One gallon of gas costs $3.02, but this cost is projected to increase by
120% in the next 2 years. What is the projected cost of a gallon of gas 2
years from now?

A. $0.60
B. $3.02
C. $3.62
D. $6.64

Answers

The answer is C if I’m not mistaken


Eric buys two plants. One plant is 4 inches tall and grows 2 of an inch per week. Another plant is 3 inches tall and grows
3
7 of an inch per week.
How many weeks will it take for the two plants to be the same height?
O A. 4
O B. 3
O C. 8
D 6

Answers

It’s Abe beacuse it grew 7 inch week and 4 tall 2 week.
It’s Abe hope it helped

The variables x and y have a quadratic relationship. Tripling the value of x causes the value of y to increase by a factor of nine. When x has a value of 3, y has a value of 2. What will be the value of y when x has a value of 9?​

Answers

Answer:

The value of y when x has a value of 9 is 18

Step-by-step explanation:

Functions

The variables x and y are said to have a quadratic relationship. That information is not enough to set up a general equation for both variables.

Furthermore, we know that tripling the value of x causes the value of y to be multiplied by 9. That leads us to establish a proportional equation between them, as follows:

[tex]y=kx^2[/tex]

Where k is an unknown constant.

Let's use the given point (3,2) to find the value of k:

[tex]2=k(3)^2[/tex]

[tex]2=9k[/tex]

Solving for k:

[tex]\displaystyle k=\frac{2}{9}[/tex]

The equation is now:

[tex]\displaystyle y=\frac{2}{9}x^2[/tex]

Now find y when x=9:

[tex]\displaystyle y=\frac{2}{9}(9)^2[/tex]

[tex]\displaystyle y=\frac{2}{9}\cdot 81=18[/tex]

The value of y when x has a value of 9 is 18

Yo i just need an answer and explanation for one and i'll be good for the rest​

Answers

Answer:

1/5

Step-by-step explanation:

4 red + 4 yellow + 2 blue = 10 in total

2 blue out of all the colors = 2/10

2/10 simplified = 1/5

Answer:

20% or 2/10

Step-by-step explanation:

Since there are 10 slots, and two of them are blue, for each spin there will be a 2/10 chance that the arrow will land on a blue slot.

What is the domain of the function represented by the graph?

Answers

Answer: d

Step-by-step explanation:

The domain of the function that is represented by the graph is: D. x ≥ -7.

What is the Domain of a Function?

The domain of a function are all the possible x-values in a function which are plotted against the y-values on the x-axis.

In the graph given, the x-axis where the line starts from is -7, and it extends to infinity to the right.

Therefore, the domain of the function is: D. x ≥ -7.

Learn more about the domain of a function on:

https://brainly.com/question/10891721

#SPJ5

Which graph of a relation is also a function ?

Answers

Answer:

B

Step-by-step explanation:

A graph is only a function when there is only one y value for each x value.

A trick is to draw a line through some points on the x-axis, and if the line goes through more than one point. Then it is not a function. (See picture)

Sorry, not all the lines are straight, but you get the point. B is the only one that doesn't have more than one point on the lines I drew.

Let sin(2x) – sin(x) = 0, where 0 ≤ x < 2π. What are the possible solutions for x?

Answers

Answer:

{0,π/3,π,5π/3}

Answer:

D

Step-by-step explanation:

on edge

PLEASE HELP ASAP
IT AN EMERGENCY



Answers

I believe it is the SSS postulate because there are two congruent sides and one shared side that they both use.
personally i think it is sss

5⁶ • 5 how do i simplify

Answers

5 to the power of 6 is 15,625 and then you times that number with 5..and you get 78,125

PLZ HELP IM BEGGING YOU. Just answer 12 and 13

Answers

Answer:

12 is

[tex]t = \frac{3(r - v)}{2} \\ [/tex]

13 is

[tex]v = \frac{5}{9z - 9w} [/tex]

Step-by-step explanation:

Please mark as brainliest

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