Which one of the following cannot represent an alternative hypothesis?
Question 8 options:
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Correct option:
(B) p =0.5
Explanation:
The one with equal sign alone always goes to Null Hypothesis.
Which one of the following cannot represent an alternative hypothesis? Question 8 options: A) p >...
Which of the following would be an appropriate alternative hypothesis? Question 1 options: 1) The mean of a sample is greater than 55. 2) The mean of a population is greater than 55. 3) The mean of a population is equal to 55. 4) The mean of a sample is equal to 55.
Which of the following is not one of the four steps of hypothesis testing: Question 15 options: a) Plot the distribution of the sample means to ensure the data is normal b) Translate the claim into a hypothesis statement c) Organize the data given in the problem and check assumptions d) Use the appropriate test to calculate the test statistic and its corresponding p value e) Reject or fail to reject the null hypothesis, H0
A researcher carried out a hypothesis test using a two-tailed alternative hypothesis. Which of the following test statistics is associated with the smallest P-value? Select one: a. Z-0.50 b. Zo - 1.00 c. Z -2.00 d. Z - 3.00
8. A very small p-value indicates that: a. we should accept the alternative hypothesis. b. we should reject the null hypothesis and the alternative hypothesis. c. we should reject the null hypothesis. d. we should not reject the null hypothesis.
3. A P-value is always computed assuming that the: A) alternative hypothesis is true. B) alternative hypothesis may be true. C) null hypothesis may be true. D null hypothesis is true. 3. A P-value is always computed assuming that the: A) alternative hypothesis is true. B) alternative hypothesis may be true. C) null hypothesis may be true. D null hypothesis is true.
Consider a hypothesis testing situation in which the null hypothesis is p = 0.05 and the alternative is p > 0.5. Data is gathered from a random sample and a test statistic of 2.1 is computed. This means the p-value would have to be: A. less than 0.01. B. between 0.01 and 0.05 C. between 0.05 and 0.10 D. greater than 0.10 E. More information is needed in order to determine the p-value.
Which of the following is true of the p-value? Select one: a. It is the probability of rejecting the null hypothesis when the alternative hypothesis is true. b. It is the extreme value of the test statistic obtained when the alternative hypothesis is true. c. It is the smallest significance level at which a null hypothesis can be rejected. d. It is the probability of rejecting the null hypothesis when the null hypothesis is true.
The null and alternative hypotheses for a hypothesis test of the difference in two population means are: Null Hypothesis: Alternative Hypothesis: Notice that the alternative hypothesis is a one-tailed test. Suppose ttest_ind method from scipy module is used to perform the test and the output is (3.25, 0.0043). What is the P-value for this hypothesis test? Select one. Question 2 options: 3.25 -3.25 0.0043 0.00215
The null and alternative hypotheses for a hypothesis test of the difference in two population means are: Null Hypothesis: Alternative Hypothesis: Notice that the alternative hypothesis is a two-tailed test. Suppose ttest_ind method from scipy module is used to perform the test and the output is (-1.99, 0.0512). What is the P-value for this hypothesis test? Select one. Question 4 options: 0.0512 1.99 0.0256 -1.99
The highest strength of association is reflected by which of the following correlation coefficients? Select one: a. -1.0 b. -0.95 c. 0.1 d. 0.85 e. none the above, as it cannot be determined