Mathematics, 06.03.2022 01:00 tiamaharaj
Marty, a typist, claims that his average typing speed is 72 words per minute. During a practice session, Marty has a sample typing speed mean of 84 words per minute based on 12 trials. At the 5% significance level, does the data provide sufficient evidence to conclude that his mean typing speed is greater than 72 words per minute? Accept or reject the hypothesis given the sample data below. H0:μ≤72 words per minute; Ha:μ>72 words per minute α=0. 05 (significance level) z0=2. 1 p=0. 18
Answers: 3
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Marty, a typist, claims that his average typing speed is 72 words per minute. During a practice sess...
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