Consider a random sample of seven college students at a particular university (n = 7), where...
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Consider a random sample of seven college students at a particular university (n = 7), where H, is the number of hours of study on the day prior to the final exam. H, (3,3,5,6,7,8,10) = Suppose that a professor claims that the typical college student studies more than 4 hours on the day prior to the final exam. Assume that the population distribution for hours of study is normally distributed. A. B. C. What is the null hypothesis? What is the alternative hypothesis? Can you reject the null hypothesis at the 10-percent level of significance? Can you reject the null hypothesis at the 5-percent level of significance? Use the critical value approach. You can use R to look up critical values, 1 but you must show all of your calculations and explain. Use R, however, to check your work. What is the 95-percent confidence interval for hours of study? Provide a written interpretation of what your 95-percent confidence interval implies. Consider a random sample of seven college students at a particular university (n = 7), where H, is the number of hours of study on the day prior to the final exam. H, (3,3,5,6,7,8,10) = Suppose that a professor claims that the typical college student studies more than 4 hours on the day prior to the final exam. Assume that the population distribution for hours of study is normally distributed. A. B. C. What is the null hypothesis? What is the alternative hypothesis? Can you reject the null hypothesis at the 10-percent level of significance? Can you reject the null hypothesis at the 5-percent level of significance? Use the critical value approach. You can use R to look up critical values, 1 but you must show all of your calculations and explain. Use R, however, to check your work. What is the 95-percent confidence interval for hours of study? Provide a written interpretation of what your 95-percent confidence interval implies.
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A The null hypothesis H0 is that the typical college student studies 4 hours or fewer on the day pri... View the full answer
Related Book For
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore
Posted Date:
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