19 You are reading a report that contains a hypothesis test you are interested in.  The writer of the report writes that the p-value for the test you are interested in is 0.0342, but does not tell you the value of the test statistic.  Using α as the level of significance, from this information you ...     a decide to reject the hypothesis at α = 0.10, and reject at α = 0.05         b decide not to reject the hypothesis at α = 0.10, and not to reject at α = 0.05       c decide to reject the hypothesis at α = 0.10, but not reject at α = 0.05.         d cannot decide based on this limited information.  You need to know the value of the test statistic.

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This question: 1 point(s) possible Submit test Assume a significance level of a= 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 55% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.0179. ... a. State a conclusion about the null hypothesis. (Reject H, or fail to reject H) Choose the correct answer below. O A. Reject H, because the P-value is less than or equal to a. O B. Fail to reject H, because the P-value is less than or equal to a. O C. Reject Ho because the P-value is greater than a. OD. Fail to reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. There is not sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than…

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Under what circumstances is a t statistic used instead of a z-score for a hypothesis test?     Justin wants to know whether a commonly prescribed drug does improve the attention span of students with attention deficit disorder (ADD). He knows that the mean attention span for students with ADD who are not taking the drug is 2.3 minutes long. His sample of 12 students taking the drug yielded a mean of 4.6 minutes. Justin can find no information regarding σx , so he calculated s2x =1.96. Determine the critical region using a one-tailed test with alpha = .05. Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values). State your conclusions in terms of H0 (Should you reject the H0 or fail to reject/accept the H0). Based on your analysis, is there a relationship between the drug and attention span?

Looking at youth depression scores from a general sample of random children in the US, we want to determine if our sample is significantly different than the national average of scores of children with depression in the US. The national average of scores on a measure of depression is 5 points. We have no reason to assume it will be higher or lower than the US national average. The sample:  11 9 12 3 3 4 13 1. What is the null and alternative hypotheses? Do not specify any directionality. 2. What did you discover (using 95% Cl)? Provide an interpretation.

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You wish to test the following claim (HA) at a significance level of α=0.001.      H0:p1=p2      HA:p1≠p2You obtain 462 successes in a sample of size n1=671 from the first population. You obtain 484 successes in a sample of size n2=629 from the second population.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to three decimal places.)p-value = The p-value is... less than (or equal to) α greater than α This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion. There is not sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion. The sample data…

You are conducting a hypothesis test on the outcome of an Statistics test at a large state University. Your null hypothesis is that the overall class average is less than or equal to 0.80. You take a sample of 64 people (a large sample), and find that the sample average is 0.82, and the standard deviation is 0.05. Your hypothesis test will be conducted at the 0.01 significance level. You calculate your test statistic would be 3.20. Would your test statistic be higher or lower if, instead, you were testing at the 0.01 level?   Group of answer choices Lower HIgher The same (neigher higher, nor lower).

N 14 problem. che cable shows the number of smokers in a random sample of 500 adults aged 20-24 nd the number of smokers in a random sample of 450 adults aged 25-29. Assume that you plan to use a significance level of alpha 0.10 to test the claim that pı p2- Find the critical value(s) for this hypothesis test. Do the data provide sufficient evidence that the proportion of smokers in the 20-24 age group is different from the proportion of smokers in the 25-29 age group? Age 20-24 500 Age 25-29 450 Number in sample Number of smokers 110 63 z = 1.645: yes z = + 1.28; yes O z = + 1.96; no z = 1.28; no