Can we infer that the mean number of hours worked (HRS1) among those working full or part time is greater than 40?
Answer to relevant QuestionsIs there sufficient evidence to infer that the average American watches more than 24 hours per week, which is 3 hours per day (TVHOURS)?Estimate with 95% confidence the average amount of television watched per day (TVHOURS).Is there enough evidence to conclude that the average household contains less than two adults (ADULTS)?After many years of teaching, a statistics professor computed the variance of the marks on her final exam and found it to be σ2 = 250. She recently made changes to the way in which the final exam is marked and wondered ...a. The proportion of successes in a random sample of 400 was calculated as 50%. Estimate the population proportion with 95% confidence.b. Repeat part (a) with p̂ = 33%.c. Repeat part (a) with p̂ = 10%.d. Discuss the effect ...
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