The mean score of adult men on a psychological test that measures "masculine stereotypes" is 4.88. a researcher studying hotel managers suspects that successful managers score higher than adult men in general. a random sample of 48 managers of large hotels has mean x-bar = 5.91. assume the population standard deviation is sigma = 3.2.

using the null and alternative hypotheses that you set up in problem 5, the value of the test statistic for this hypothesis test is

We use z-test for this hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.88

Sample mean, = 5.91

Sample size, n = 48

Alpha, α = 0.05

Population standard deviation, σ = 3.2

First, we design the null and the alternate hypothesis

The null hypothesis states that the mean score of successful managers on a psychological test is 4.88 and the alternate hypothesis says that the mean score of successful managers on a psychological test is greater than 4.88.

We use One-tailed z test to perform this hypothesis.

Formula:

Putting all the values, we have

question

what is the value of the third quartile of the data set represented by this box plot? a. 19 b. 21 c. 26 d. 29

answer

c

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step-by-step explanation:

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