Salary data from two random samples of high school teachers are shown to the right. Also shown are the population Sample mean Sample size Population standard standard deviations. deviation State A $50,574 State B $46,966 36 47 $6,711 $7,218 a. Construct a 90% confidence interval to estimate the difference in the average salaries of the high school teachers in these two states. b. Based on the results in part a, can you conclude that a difference exists in the average salaries? a. Let population 1 = the salaries of the high school teachers in State A and population 2 = the salaries of the high school teachers in State B. The confidence interval is ($$ (Round to the nearest dollar as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Salary data from two random samples
of high school teachers are shown to
the right. Also shown are the population
Sample mean
Sample size
Population standard
standard deviations.
deviation
State A
$50,574
State B
$46,966
36
47
$6,711
$7,218
a. Construct a 90% confidence interval to estimate the difference in the average salaries of the
high school teachers in these two states.
b. Based on the results in part a, can you conclude that a difference exists in the
average salaries?
a. Let population 1 = the salaries of the high school teachers in State A and population 2 = the
salaries of the high school teachers in State B.
The confidence interval is ($$
(Round to the nearest dollar as needed.)
Transcribed Image Text:Salary data from two random samples of high school teachers are shown to the right. Also shown are the population Sample mean Sample size Population standard standard deviations. deviation State A $50,574 State B $46,966 36 47 $6,711 $7,218 a. Construct a 90% confidence interval to estimate the difference in the average salaries of the high school teachers in these two states. b. Based on the results in part a, can you conclude that a difference exists in the average salaries? a. Let population 1 = the salaries of the high school teachers in State A and population 2 = the salaries of the high school teachers in State B. The confidence interval is ($$ (Round to the nearest dollar as needed.)
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