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A sample mean, sample size, and population standard deviation are given. Use the P-value appraoch to perform a one-mean z-test about the mean, μ, of the population from which the sample was drawn. Determine the strength of the evidence against the null hypothesis.
> n = 20, >, >, α = 0.05
A. z = 2.57; P-value = 0.0101; Reject H0. The evidence against the null hypothesis is strong.B. z = 0.35; P-value = 0.7263; Do not reject H0. The evidence against the null hypothesis is weak or none.C. z = 1.57; P-value = 0.1164; Do not reject H0. The evidence against the null hypothesis is weak or none.D. z = 1.57; P-value = 0.0582; Do not reject H0. The evidence against the null hypothesis is moderate
Identify the dependent variable for this study and what scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable?
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What is the importance of the null hypothesis? Why has it been the backbone of mainstream hypothesis testing for decades? What are its limitations?
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The Warren County Telephone Company claims in its annual report that "the typical customer spends $70 per month on local and long-distance service.
Find out the probability that: (a) The amount requested is between $65,000 or more?
a commuter train from long island to new york city is scheduled to arrive at 807 am every weekday morning. the
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