Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter B.1, Problem 1AYU
B.1 Assess Your Understanding
In Problems 1–4, (a) find the slope of the line and (b) interpret the slope.
NW 1. 
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32. Consider a normally distributed population with mean μ = 80
and standard deviation σ = 14.
a.
Construct the centerline and the upper and lower control
limits for the chart if samples of size 5 are used.
b. Repeat the analysis with samples of size 10.
2080 101
c. Discuss the effect of the sample size on the control limits.
Consider the following hypothesis test.
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n 1 = 80
n 2 = 70
x 1 = 104
x 2 = 106
σ 1 = 8.4
σ 2 = 7.6
What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals).
What is the p-value (to 4 decimals)? Use z-table.
With = .05, what is your hypothesis testing conclusion?
Periodically, Merrill Lynch customers are asked to evaluate Merrill Lynch financial consultants and services (2000 Merrill Lynch Client Satisfaction Survey). Higher ratings on the client satisfaction survey indicate better service with 7 the maximum service rating. Independent samples of service ratings for two financial consultants are summarized here. Consultant A has 10 years of experience, whereas consultant B has 1 year of experience. Use = .05 and test to see whether the consultant with more experience has the higher population mean service rating.
Consultant A
Consultant B
= 16
= 10
= 6.82
= 6.25
= .64
= .75
State the null and alternative hypotheses.H0: 1 - 2 Ha: 1 - 2
Compute the value of the test statistic (to 2 decimals).
What is the p-value?The p-value is
What is your conclusion?
Chapter B.1 Solutions
Fundamentals of Statistics (5th Edition)
Ch. B.1 - B.1 Assess Your Understanding In Problems 14, (a)...Ch. B.1 - Prob. 2AYUCh. B.1 - Prob. 3AYUCh. B.1 - Prob. 4AYUCh. B.1 - In Problems 512, plot each pair of points and...Ch. B.1 - In Problems 512, plot each pair of points and...Ch. B.1 - Prob. 7AYUCh. B.1 - Prob. 8AYUCh. B.1 - Prob. 9AYUCh. B.1 - Prob. 10AYU
Ch. B.1 - Prob. 11AYUCh. B.1 - Prob. 12AYUCh. B.1 - Prob. 13AYUCh. B.1 - Prob. 14AYUCh. B.1 - In Problems 1320, graph the line containing the...Ch. B.1 - Prob. 16AYUCh. B.1 - Prob. 17AYUCh. B.1 - Prob. 19AYUCh. B.1 - Prob. 20AYUCh. B.1 - Prob. 21AYUCh. B.1 - Prob. 22AYUCh. B.1 - Prob. 23AYUCh. B.1 - Prob. 24AYUCh. B.1 - Prob. 25AYUCh. B.1 - Prob. 26AYUCh. B.1 - Prob. 27AYUCh. B.1 - Prob. 28AYUCh. B.1 - Prob. 29AYUCh. B.1 - Prob. 30AYUCh. B.1 - Prob. 31AYUCh. B.1 - Prob. 32AYUCh. B.1 - Prob. 33AYUCh. B.1 - Prob. 34AYUCh. B.1 - Prob. 35AYUCh. B.1 - Prob. 36AYUCh. B.1 - Prob. 37AYUCh. B.1 - Prob. 38AYUCh. B.1 - Prob. 39AYUCh. B.1 - Prob. 40AYUCh. B.1 - Prob. 41AYUCh. B.1 - Prob. 42AYUCh. B.1 - Prob. 43AYUCh. B.1 - Prob. 44AYUCh. B.1 - Prob. 45AYUCh. B.1 - Prob. 46AYUCh. B.1 - Prob. 47AYUCh. B.1 - In Problems 3150, find the slope and yintercept of...Ch. B.1 - In Problems 3150, find the slope and yintercept of...Ch. B.1 - Prob. 50AYU
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