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  3. 1. according to a 2011 report by the u.s. departme

1. According to a 2011 report by the U.S. Department of Labor, civilian Americans spend 2.75...

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Basic Math

1. According to a 2011 report by the U.S. Department of Labor,civilian Americans spend 2.75 hours per day watching television. Afaculty researcher, Dr. Sameer, at California Polytechnic StateUniversity (Cal Poly) conducts a study to see whether a differentaverage applies to Cal Poly students. He surveys a random sample of100 Cal Poly students and finds the mean number of hours spentwatching TV is 3.07 hours. The sample standard deviation is 1 hour.The sample distribution is not strongly skewed.

a. Describe the parameter in words. Assign a symbol to it.

b. What is the value for the statistic? Assign a symbol toit.

c. Describe the null hypothesis in words.

d. Describe the alternative hypothesis in words.

e. Write your null hypothesis and alternative hypothesis frompart c and d using symbols.

f. Why we can use theory-based approach for this study?

g. Calculate the t-statistic. Show your work. h. Based on yourt-statistic, do you have strong evidence against the nullhypothesis?

i. Based on your result from part h, what type of error mayoccur?

j. Describe the type of error you identify in part I in thecontext of the question.

Answer & Explanation Solved by verified expert
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a Parameter average time spent per day watchingtelevisionb    See Answer
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