The mean commuting distance of a random sample of 32 American adults was 9.50 miles, with a standard deviation of 6.92 miles. Construct a 90% confidence interval for the population mean. Assume that the population is normally distributed.     7.10 to 11.90 7.10 to 11.90 6.35 to 12.65 6.35 to 12.65 7.49 to 11.51 7.49 to 11.51 7.43 to 11.57 7.43 to 11.57

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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The mean commuting distance of a random sample of 32 American adults was 9.50 miles, with a standard deviation of 6.92 miles. Construct a 90% confidence interval for the population mean. Assume that the population is normally distributed.
 
 
  • 7.10 to 11.90
    7.10 to 11.90
  • 6.35 to 12.65
    6.35 to 12.65
  • 7.49 to 11.51
    7.49 to 11.51
  • 7.43 to 11.57
    7.43 to 11.57
 
 
 
 
 
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