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1.Create a scatter diagram with trendline for the following: (SEE ATTACHED) Then a.Show the equation of the trendline on the scatter diagram along with the

1.Create a scatter diagram with trendline for the following: (SEE ATTACHED)

Then

a.Show the equation of the trendline on the scatter diagram along with the coefficient of correlation (r squared).

b.Using Pearson's Product Moment Correlation Coefficient, discuss the strength of the relationship between pages and price.Make sure you have stated the value of r.

c.What type of relationship, if any, is there between pages and price?Use words like strong, weak, positive, negative, no relationship...

d.According to the trendline, how much should a book that is 560 pages cost?

2.Conduct a full hypothesis test using the p value method. Make sure all the steps are there.A good thing to do is to get the prompts from the Week 6 written assignment.

A sample of 22 account balances of a credit company showed a mean customer balance of $4,000, but the marketing manager claimed that the mean balance for the population was $4,125. The marketing manager did NOT have the population standard deviation, but the sample standard deviation was found to be $350. Use the p-value approach to conduct a full hypothesis test (all steps) that can be used to determine whether the mean of all account balances is significantly different from $4,125. Let?= .05.

3.Weekly demand at a grocery store for a brand of breakfast cereal is normally distributed with a mean of 774 boxes and standard deviation of 51 boxes.

Sketch the z graph with appropriate labels and shading and determine the probability that the weekly demand is:

a.760 boxes or less.

b.More than 805 boxes.

c.Between 670 and 817 boxes.

image text in transcribed
Book Pages (x variable) Price (y variable) A 504 $7.00 B 620 $9.25 C 516 $7.80 D 675 $8.50 E 510 $7.25 F 662 $8.25 G 480 $6.95 H 771 $9.95

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