5. Suppose a tire company developed two new brands of tires and would like to compare the variability of the tire life of the two. Both brands were driven under normal conditions, and random samples of the tires were collected. The table below shows the sar sizes and the standard deviations, in miles, calculated for each sample. Complete parts a and b. Brand 1 Brand 2 Sample standard deviation Sample size 3,700 miles 3,300 miles 30 30 a. Using a = 0.10, determine if there is a difference in the variability of the two tire brands. Identify the null and alternative hypotheses. Ho: o? (1) H,: o? (2) Calculate the appropriate test statistic.
5. Suppose a tire company developed two new brands of tires and would like to compare the variability of the tire life of the two. Both brands were driven under normal conditions, and random samples of the tires were collected. The table below shows the sar sizes and the standard deviations, in miles, calculated for each sample. Complete parts a and b. Brand 1 Brand 2 Sample standard deviation Sample size 3,700 miles 3,300 miles 30 30 a. Using a = 0.10, determine if there is a difference in the variability of the two tire brands. Identify the null and alternative hypotheses. Ho: o? (1) H,: o? (2) Calculate the appropriate test statistic.
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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