A recent national survey found that high school students watchedan average of 6.8 DVDs per month with a population standarddeviation of 0.5 DVDs. The distribution follows the normaldistribution. A random sample of 36 college students revealed thatthe mean number of DVDs watch last month was 6.2. At the .05significance level, can we conclude that college students watchfewer 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 sandvalues)
e. What is your test statistic value?
f. What is the p-value
g. What is your decision regarding the null hypothesis?
