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In: Statistics and Probability

A recent national survey found that high school students watched an average of 6.8 DVDs per...

A recent national survey found that high school students watched an average of 6.8 DVDs per month with a population standard deviation of 0.5 DVDs. The distribution follows the normal distribution. A random sample of 36 college students revealed that the mean number of DVDs watch last month was 6.2. At the .05 significance level, can we conclude that college students watch fewer DVDs a month than high school students?

a. What is the null and alternative hypotheses?

b. Is this a two-tailed or one-tailed test?

c. Which distribution should we use? Normal or Student t

d. What is the critical value(s)? (the line in the sand values)

e. What is your test statistic value?

f. What is the p-value

g. What is your decision regarding the null hypothesis?

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Expert Solution

orchestra answered 1 year ago
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