Mathematics, 27.03.2020 00:22, jljhenkel
Suppose a bowler claims that her bowling score is not equal to 150 points, on average. Several of her teammates do not believe her, so the bowler decides to do a hypothesis test, at a 5% significance level, to persuade them. She bowls 22 games. The mean score of the sample games is 157 points. The bowler knows from experience that the standard deviation for her bowling score is 18 points.
H0: μ = 150; Ha: μ = /150
α = 0.05 (significance level)
(a) What is the test statistic (z-score) of this one-mean hypothesis test?
Answers: 3
Mathematics, 22.06.2019 03:50, dekarouh
The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?
Answers: 2
Mathematics, 22.06.2019 04:00, mariaramirez013
The function below is written in vertex form or intercept form. rewrite them in standard form and show your work. y = -3(x-2)(x-4)
Answers: 2
Suppose a bowler claims that her bowling score is not equal to 150 points, on average. Several of he...
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