B. “A study with a large sample is less likely than a smaller study to get the result that P < 0.05”
Because there is more probability of a sampling error in a small sample size.
Can someone explain the reasoning behind this? 18. Assume that a null hypothesis is true. Which...
1) In hypothesis testing, the region of rejection of the null hypothesis will always be smaller than the region of acceptance of the null hypothesis. True or False? One-sample tests use data drawn from a single sample to test that the sample comes from a specified population. True or False? A study of more than 20,000 mothers of newborns revealed a 10% greater likelihood of purchase by mothers of boys versus mothers of girls. The null hypothesis is: "Mothers of...
Question 5 2 pts Which of the following statements is true? (a) we reject a null hypothesis if the p-value of the test is smaller than the level of the significance a. (b) we accept a null hypothesis if the p-value of the test is smaller than the level of the significance a. (c) we reject a null hypothesis if the p-value of the test is larger than the level of the significance a. . (a) . (b) . (c)
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.
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined...
Assume a researcher published a paper rejecting a null hypothesis at the 1% level of significance (that is, α = 0.01), which of the following statements is true? The finding may not be significant since it was not tested at an alpha level of 0.05 You cannot make any assumptions about the alpha at the 5% level without first calculating the value from the published data It is 5 times as likely the null hypothesis would be accepted at the...
Select all that are true, if p < .05 1.) the null hypothesis should be accepted 2.)the test results are significant 3.) the results are not likely due to random chance 4.) the null hypothesis should be rejected 5.) you would expect to find results more extreme less than 5 times out of 100
18. The criterion used for rejecting the null hypothesis is called _____. a. Alternate hypothesis b. Type I error c. Significance level d. Standard error of the mean 19. The smaller the p value _____. a. The more evidence we should reject the null hypothesis b. The less evidence we should reject the null hypothesis c. The more likely it is that the results are not significant d. Has no relationship with significance 23. Hospital autopsies include which of the...
A P-value of 0.12 is calculated on a hypothesis test with a significance level set at 0.01. Which of the following is the correct conclusion for the test? a. Claim the null hypothesis is true b. Fail to reject the null hypothesis c. Reject the null hypothesis d. Claim the alternative hypothesis is true Which of the following are not requirements for using the t-distribution for a hypothesis test concerning μ? (More than one answer may be correct.) a. Sample...
Question 1: True or False (2 points each) a) ANOVA tests the null hypothesis that the sample means are all equal. b) A strong case for causation is made in an observational study. c) In rejecting the null-hypothesis, one can conclude that all the means are different from each other d) One-way ANOVA can be used only when there are fewer than five means to be compared. e) The null hypothesis for the Levene’s test for homogeneity of variance is...
Can someone please help me with this question? 13.1 You are conducting a multinomial hypothesis test (αα = 0.05) for the claim that all 5 categories are equally likely to be selected. a. Complete the table. Category Observed Frequency Expected Frequency A 11 B 9 C 22 D 7 E 11 Report all answers accurate to three decimal places. But retain unrounded numbers for future calculations. b. What is the chi-square test-statistic for this data? (Report answer accurate to three...