It was always accepted that residents from two nearby cities exercise the same amount. A researcher proposed that the two cities don’t exercise the same. City A asks 36 residents who answered that they exercise on average 2.9 hrs/ week with a standard deviation of 1.1 hrs. City B asks 38 residents who answered they exercise 2.7 hrs/ week with a standard deviation of 1 hr. Test the claim at 0.05 level of significance.

It was always accepted that residents from two nearby cities exercise the same amount. A researcher proposed that the two cities don’t exercise the same. City A asks 36 residents who answered that they exercise on average 2.9 hrs/ week with a standard deviation of 1.1 hrs. City B asks 38 residents who answered they exercise 2.7 hrs/ week with a standard deviation of 1 hr. Test the claim at 0.05 level of significance.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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