Required information
[The following information applies to the questions
displayed below.]
A recent national survey found that high school students watched an average (mean) of 6.6 DVDs per month with a population standard deviation of 1.00 hour. The distribution of DVDs watched per month follows the normal distribution. A random sample of 30 college students revealed that the mean number of DVDs watched last month was 6.00. At the 0.05 significance level, can we conclude that college students watch fewer DVDs a month than high school students? |
a. | State the null hypothesis and the alternate hypothesis. |
Multiple Choice
H0: μ ≥ 6.6 ; H1: μ < 6.6
H0: μ ≤ 6.6 ; H1: μ > 6.6
H0: μ > 6.6 ; H1: μ = 6.6
H0: μ = 6.6 ; H1: μ ≠ 6.6
b. | State the decision rule. |
Multiple Choice
Reject H1 if z < -1.645
Reject H0 if z < -1.645
Reject H0 if z > -1.645
Reject H1 if z > -1.645
c. |
Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) |
Value of the test statistic |
|
d. | What is your decision regarding H0? |
Multiple Choice
Cannot reject H0
Reject H0
e. | What is the p-value? (Round your answer to 4 decimal places.) |
p-value |
Required information [The following information applies to the questions displayed below.] A recent national survey found...
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[The following information applies to the questions displayed below.] A recent national survey found that high school students watched an average (mean) of 6.6 DVDs per month with a population standard deviation of 1.00. A random sample of 30 college students revealed that the mean number of DVDs watched last month was 6.00. At the .05 significance level, can we conclude that college students watch fewer DVDs a month than high school students? 4. Required information (b) State the decision...
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