The result of a hypothesis is described in terms of the probability of obtaining a particular sample. Use the given context to formulate the null and alternative hypotheses. Discuss whether the sample provides evidence for rejecting the null hypothesis.A public bus company official claims that the mean waiting time for bus number 14 during peak hours is only
Karen finds this hard to believe as she seems to be invariably late for work. For 42 randomly selected days, her mean waiting time for bus 14 during peak hours was 11.3 minutes. Assuming that the population mean waiting time is 10 minutes , the probability of selecting a random sample with a mean waiting time of 11.3
minutes or more is 0.0026.
What will be an ideal response?
Null hypothesis: mean waiting time = 10 minutes
Alternative hypothesis: mean waiting time > 10 minutes
The results is significant at the 0.01 level. There is strong evidence for rejecting the null hypothesis in favor of the alternative hypothesis that the mean waiting time is more than 10 minutes.
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A. {42} B. {28} C. {-28} D. {-42}
Solve the problem.The quadratic function models the median, or average, age, y, at which U.S. men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)
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A. (0, 0) B. (5, -2) C. (-2, -5) D. (-2, 5)
Identify the natural number as prime or composite. If the number is composite, find its prime factorization.12
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