A sample of 44 observations is selected from a normal population. The sample mean is 24, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.05 significance level.
H0: μ ≤ 23 H1: μ > 23
a) Is this a one- or two-tailed test?
b) What is the decision rule?
c) What is the value of the test statistic?
d) What is your decision regarding H0?
e) What is the p-value?
f) Interpret the p-value?
A sample of 44 observations is selected from a normal population. The sample mean is 24,...
A sample of 71 observations is selected from a normal population. The sample mean is 24, and the population standard deviation is 8. Conduct the following test of hypothesis using the 0.05 significance level. H0 : μ ≤ 23 H1 : μ > 23 a. Is this a one- or two-tailed test? (Click to select) One-tailed test Two-tailed test b. What is the decision rule? (Round the final answer to 3 decimal places.) (Click to select) Reject Accept H0 and (Click to select) accept reject H1 when z > ....
A sample of 38 observations is selected from a normal population. The sample mean is 47, and the population standard deviation is 7. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ = 48; H1: μ ≠ 48 (20 pts) Is this a one- or two-tailed test What is the decision rule? What is the value of the test statistic? What is your decision regarding H0?
A sample of 31 observations is selected from a normal population. The sample mean is 23, and the population standard deviation is 2. Conduct the following test of hypothesis using the 0.10 significance level. H0 : μ ≤ 22 H1 : μ > 22 A.) Is this a one- or two-tailed test? B.) What is the decision rule? C.) What is the value of the test statistic? (Round your answer to 2 decimal places.) D.) What is your decision regarding...
A sample of 51 observations is selected from a normal population. The sample mean is 32, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.05 significance level: H0: μ ≤ 30 H1: μ > 30 a. Is this a one- or two-tailed test? (Click to select) One-tailed test Two-tailed test b. What is the decision rule? Reject H0 when z (Click to select) ≤ 1.64 > 1.64 . c. What is the value of the test statistic?...
A sample of 37 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.02 significance level. H0: μ ≤ 20 H1: μ > 20 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? Reject H0 when z > 2.054 Reject H0 when z ≤ 2.054 What is the value of the test statistic? (Round your...
A sample of 37 observations is selected from a normal population. The sample mean is 29, and the population standard deviation is 5. Conduct the following test of hypothesis using the 0.05 significance level. H0 : μ ≤ 26 H1 : μ > 26 a. Is this a one- or two-tailed test? "One-tailed"-the alternate hypothesis is greater than direction. "Two-tailed"-the alternate hypothesis is different from direction. b. What is the decision rule? (Round your answer to 3 decimal places.)...
A sample of 31 observations is selected from a normal population. The sample mean is 11, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 10 H1: μ > 10 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? Reject H0 when z > 1.645 Reject H0 when z ≤ 1.645 What is the value of the test statistic? (Round your...
A sample of 35 observations is selected from a normal population. The sample mean is 26, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. H0 : μ ≤ 25 H1 : μ > 25 A.) Is this a one- or two-tailed test? "Two-tailed"-the alternate hypothesis is different from direction. "One-tailed"-the alternate hypothesis is greater than direction B.) What is the decision rule? (Round your answer to 3 decimal places.) H0,...
A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the 0.025 significance level. H0: μ ≥ 220 H1: μ < 220 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) What is the value of the...
A sample of 45 observations is selected from a normal population. The sample mean is 49, and the population standard deviation is 5. Conduct the following test of hypothesis using the 0.10 significance level. H0: μ = 51 H1: μ ≠ 51 Is this a one- or two-tailed test? One-tailed test Two-tailed test What is the decision rule? Reject H0 if −1.645 < z < 1.645 Reject H0 if z < −1.645 or z > 1.645 What is the value...