A personnel agency is comparing salaries of uncertified accountants versus CPAs. Among recent accountants that they placed, 4 were uncertified while 6 were CPAs. The annual salaries (in dollars) are summarized in the following table: a. Calculate a 95% confidence interval for the difference between average salaries of uncertified accountants and CPAs. b. Interpret the interval in part a. c. Is there a difference between average salaries of uncertified accountants versus CPAs? Table 7.6: Annual Salaries Uncertified CPA Average $48,500 $56,600 SD $8,700 $9,100 Sample Size 4 6
A personnel agency is comparing salaries of uncertified accountants versus CPAs. Among recent accountants that they placed, 4 were uncertified while 6 were CPAs. The annual salaries (in dollars) are summarized in the following table: a. Calculate a 95% confidence interval for the difference between average salaries of uncertified accountants and CPAs. b. Interpret the interval in part a. c. Is there a difference between average salaries of uncertified accountants versus CPAs? Table 7.6: Annual Salaries Uncertified CPA Average $48,500 $56,600 SD $8,700 $9,100 Sample Size 4 6
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A personnel agency is comparing salaries of uncertified accountants versus CPAs. Among
recent accountants that they placed, 4 were uncertified while 6 were CPAs. The annual salaries
(in dollars) are summarized in the following table:
a. Calculate a 95% confidence interval for the difference between average salaries of uncertified
accountants and CPAs.
recent accountants that they placed, 4 were uncertified while 6 were CPAs. The annual salaries
(in dollars) are summarized in the following table:
a. Calculate a 95% confidence interval for the difference between average salaries of uncertified
accountants and CPAs.
b. Interpret the interval in part a.
c. Is there a difference between average salaries of uncertified accountants versus CPAs?
Table 7.6: Annual Salaries
Uncertified CPA
Average $48,500 $56,600
SD $8,700 $9,100
Sample Size 4 6
Table 7.6: Annual Salaries
Uncertified CPA
Average $48,500 $56,600
SD $8,700 $9,100
Sample Size 4 6
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