If significance level=0.05 and p-value=0.07, do you reject or fail to reject the null hypothesis H0?
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If significance level=0.05 and p-value=0.07, do you reject or fail to reject the null hypothesis H0?
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- If, in a (two-tail) hypothesis test, the p-value is 0.1144, what is your statistical decision if you test the null hypothesis at the 0.07 level of significance? Please choose from the answers in the pictureIf a null hypothesis is not rejected at the 0.10 level of significance, it 1 must be rejected at the 0.05 level of significance. 2 might be rejected at the 0.05 level of significance. 3 will not be rejected at the 0.05 level of significance. 4 must be rejected at the 0.01 level of significance.Are freshmen psychology majors less likely to change their major before they graduate compared to freshmen business majors? 355 of the 641 freshmen psychology majors from a recent study changed their major before they graduated and 404 of the 674 freshmen business majors changed their major before they graduated. What can be concluded at the = 0.05 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer H1: Select an answer Select an answer Select an answer Select an answer Select an answer (please enter a decimal) (Please enter a decimal) b. The test statistic ? C c. The p-value = d. The p-value is ? Q e. Based on this, we should Select an answer the null hypothesis. f. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) > Next Question (Please show your answer to 4 decimal places.) O The results are statistically insignificant at a = 0.05, so there is statistically…
- State why a non-significant outcome does not mean the null hypothesis is probably true?When the null hypothesis is true, the F test statistic is close to .When the null hypothesis is false, the F test statistic is most likelySelect the appropriate null and alternative hypothesis for the following research question: People who see therapists have lower depression scores than people who do not see therapists? xbar1 = the average depression score for people who see a therapist xbar2 = the average depression score for people who do not see a therapist O Null Hypothesis: People who see a therapist have depression scores lower than or equal to people who do not see a therapist i.e. xbar1 xbar2 O Null Hypothesis: People who see a therapist have depression scores higher than or equal to people who do not see a therapist i.e. xbar1 >= xbar2 Alternative Hypothesis: People who see a therapist have depression scores lower than people who do not see a therapist i.e. xbar1 < xbar2
- If you have do not have enough evidence to reject the null hypothesis at the 5% significance level using the critical value method, you will not have enough evidence to reject at the 10% significance level. True O FalseThe body weight of a healthy 3-month-old colt should be about ? = 68 kg. (a) If you want to set up a statistical test to challenge the claim that ? = 68 kg, what would you use for the null hypothesis H0? ? > 68 kg? < 68 kg ? = 68 kg? ≠ 68 kg (b) In Nevada, there are many herds of wild horses. Suppose you want to test the claim that the average weight of a wild Nevada colt (3 months old) is less than 68 kg. What would you use for the alternate hypothesis H1? ? > 68 kg? < 68 kg ? = 68 kg? ≠ 68 kg (c) Suppose you want to test the claim that the average weight of such a wild colt is greater than 68 kg. What would you use for the alternate hypothesis? ? > 68 kg? < 68 kg ? = 68 kg? ≠ 68 kg (d) Suppose you want to test the claim that the average weight of such a wild colt is different from 68 kg. What would you use for the alternate hypothesis? ? > 68 kg? < 68 kg ? = 68 kg? ≠ 68 kg (e) For each of the tests in parts (b), (c), and (d), respectively,…Suppose a hypothesis test was performed with a level of significance of 0.05. Then if the null hypothesis is actually true, then there is a 5% chance that the researcher will end up rejecting the null hypothesis in error. True False
- Records from a toy manufacturing company showed that the mean time that the top-selling toy captured children’s attention was 40 minutes. A competing company strongly suspects that the mean time will be less than 40 minutes for the new generation of children and wishes to carry out a hypothesis test. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.When a result is not extreme enough to reject the null hypothesis, explain why it is wrong to conclude that your result supports the null hypothesis.If the p-value is very large (say close to 1), then it is likely that we will reject the null hypothesis. True False
