The average American walks 3000 steps per day. A researcher believes that, due to the pandemic, people are walking less. A survey of 51 individuals found that the average number of steps they walked per day was 2903, with a standard deviation of 501 steps. At the  level of significance, test the researcher’s hypothesis. You may use StatCrunch the test statistic using the formula or

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A: The summary of statistics is,

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A: Given  Level of significance=alpha=0.05, n=36 and Xbar=9, s=1 We want to test H1:mu>8

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A: Given: n=11 The samples are: 227.2, 233.3, 259.7, 265.8, 252.1, 228.8, 222.6, 202.9, 214.5, 237.2,…

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A:

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A: given data n1 = 40x¯1 = 135.40s1 = 9.31n2 = 48x¯2 = 135.50s2 = 9.03α = 0.05claim : μ1 ≠ μ2

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Q: Please see below.

A: Let X is the time to complete the obstacle course. X~U(a,b) a=8, b=17

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