Question

A.Plot these data on the x and y coordinate. each x and y will be one point. Label and scale X-and Y-axis

X |
Y |

2700 | 36 |

3190 | 41 |

3042 | 49 |

3393 | 41 |

3682 | 73 |

3814 | 41 |

4500 | 22 |

3572 | 58 |

2888 | 100 |

3208 | 27 |

B.List a conclusion the reference to any association that might exist between two variables.

Answer #1

(A) Copy and paste the data set into excel sheet

then select the data set

click on insert tab, then select scatter plot

we get the following scatter plot for the given data set

(B) Looking the data points in the scatter plot, it looks like that the y values are increasing with increase in x value

this means that there might be some positive relationship between x and y values

So, we can say that variable x and y are positively related with each other and strength of association is not strong.

Data for two variables, x and y, follow.
xi
22
24
25
28
41
yi
12
23
31
36
69
a. Develop the estimated regression equation
for these data (to 2 decimals). Enter negative value as negative
number.
y=-43.71+2.78x
b. Compute the standardized residuals for these
data (to 2 decimals). Enter negative value as negative number.
xi
yi
Standardized
Residual
22
12
24
23
-0.02
25
31
1.31
28
36
41
69
c. Compute the leverage values for these data...

Use the data in the table below to complete parts (a) through
(c).
x y
4 27
7 36
9 29
12 32
14 25
18 25
20 22
45 9
(a) Construct a scatterplot of the data
(b) Identify any possible outliers.
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2. Use observed cell counts found in...

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X Y
18 40
14 30
20 20
22 20
19 10
27 0
Calculate the values of the sample
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Suppose X follows a normal distribution with mean µ = 50 and
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5.1
The accompanying data are x = cost (cents per serving) and y =
fiber content (grams per serving) for 18 high-fiber cereals rated
by a magazine.
Cost per
Serving
Fiber per
Serving
Cost per
Serving
Fiber per
Serving
39 7 53 13
46 10 53 10
49 10 67 8
62 7 43 12
41 8 48 7
19 7 28 14
77 12 54 7
71 12 27 8
30 8 57 8
(a)
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The file P17_05.xlsx contains data on 100 consumers who drink
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Individual...

Your assignment is to do a detailed statistical analysis of the
data to be able to decide later what would be appropriate control
charts to monitor these variables.
The manager provides you data that the office has collected on
these two variables:
Time it takes since the patient checks-in until the patient
checks-out
Number of patients in the waiting room
Present a report to the manager with the results of the
statistical analysis of the data and your conclusions on...

Your assignment is to do a detailed statistical analysis of the
data to be able to decide later what would be appropriate control
charts to monitor these variables.
The manager provides you data that the office has collected on
these two variables:
Time it takes since the patient checks-in until the patient
checks-out
Number of patients in the waiting room
Present a report to the manager with the results of the
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You are a consultant who works for the Diligent Consulting
Group. In this Case, you are engaged on a consulting basis by
Loving Organic Foods. In order to get a better idea of what might
have motivated customers’ buying habits you are asked to analyze
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Case Assignment
Using Excel, generate regression estimates for the following
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Annual Amount Spent on Organic Food = α...

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