In order to test the following hypotheses at an ? level of significance
H0: ? ? 800 Ha: ? > 800 the null hypothesis will be rejected if the test statistic Z is
a. > Z?
b. < Z?
c. < -Z?
d. = ?
Answer: option(A)
Since it is an upper tailed test, we will look at +ve value of Z and if we get Z greater than Z alpha, we reject the Null Hypothesis.
In order to test the following hypotheses at an ? level of significance H0: ? ?...
In order to test the following hypotheses at an α level of significance H0: μ ≤ 800 Ha: μ > 800 the null hypothesis will be rejected if a) the test statistic z ≥ zα. b) the test statistic z < zα. c) the test statistic z < −zα. d) the test statistic z = α.
When the following hypotheses are being tested at a level of significance of α, H0: μ ≥ 500 Ha: μ < 500 the null hypothesis will be rejected if a) p-value ≤ 1 − α/2 b) p-value = α/2 c) p-value > α d) p-value ≤ α
The following hypotheses are given. H0 : π ≤ 0.75 H1 : π > 0.75 A sample of 130 observations revealed that p = 0.89. At the 0.10 significance level, can the null hypothesis be rejected? a. State the decision rule. (Round your answer to 2 decimal places.) Reject H0 if z > b. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic c. What is your decision regarding the...
The following hypotheses are given. H0: p ≤ 0.49 H1: p > 0.49 A sample of 142 observations revealed that = 0.39. At the 0.10 significance level, can the null hypothesis be rejected? a. State the decision rule. (Round the final answer to 3 decimal places.) Reject Correct H0 and and accept Correct H1 if z > 1.28 1.28 Incorrect or z < 1.28 1.28 Incorrect . b. Compute the value of the test statistic. (Round the final answer to...
The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A sample of 80 observations revealed that p = 0.95. At the 0.01 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places. Reject H0 if z > Compute the value of the test statistic. (Round your answer to 2 decimal places.)
The following hypotheses are given. H0: p ≤ 0.83 H1: p > 0.83 A sample of 128 observations revealed that = 0.73. At the 0.05 significance level, can the null hypothesis be rejected? a. State the decision rule. (Round the final answer to 3 decimal places.) H0 and H1. i . b. Compute the value of the test statistic. (Round the final answer to 2 decimal places.) Value of the test statistic -3.01 c. What is your decision regarding the...
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For a test of a mean, which of the following is correct? Top of Form H0 is rejected when the calculated p-value is less than the specified level of significance For a left-tailed test, the null hypothesis H0 will be rejected when the test statistic exceeds the critical value . The test statistic value is based on the chosen level of significance. If H0: μ= 5 and H1: μ ≠ 5, then the test can either be a right-tailed test...
The following hypotheses are given. H0 : π ≤ 0.83 H1 : π > 0.83 A sample of 100 observations revealed that p = 0.87. At the 0.10 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places.) Compute the value of the test statistic. (Round your answer to 2 decimal places.) What is your decision regarding the null hypothesis? Do not reject H0. Reject H0. question 2: The number of...
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