find out p value for given data the test is one tailed test sample size 67 test statastics t = 1.956
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A: we have given that n1=23 , n2=23 xbar1=0.57 , xbar2 =0.39 sigma1=0.62 , sigma2 =1.29 alpha =0.05
find out p value for given data
the test is one tailed test
test statastics t = 1.956
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- Treatment Sham H2 Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. 30 30 0.51 0.37 0.56 1.42 a. Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. What are the null and alternative hypotheses? A. Ho: H1 = H2 H4: H1 # H2 B. Ho: H1 = H2 H1: H1> H2 C. Ho: Hy # H2 H1: H1Two-sample t-test I need to perform a two-sample t-test analysis to determine if mean absenteeism is different between organizations which have a good Union management and those that do not. Can you please explain the steps to get this in excel? Data: Wage Pct PT Pct U Av Shift U/M Rel Absent 22477 8.5 57.1 1 1 5.4 29939 1.9 41.5 0 1 4.1 22957 12.2 52.6 1 0 11.5 18888 30.8 65.1 0 1 2.1 15078 6.8 68.8 0 1 5.9 15481 5.1 46.4 0 0 12.9 21481 25.3 38.9 0 1 3.5 29687 9.2 17.2 0 0 2.6 13603 8.4 12.9 0 0 8.6 18303 4.9 18.1 0 1 2.7 20832 23.8 64.4 1 1 6.6 22325 24.1 63.7 1 1 2.1 19964 8.6 12.2 0 1 3.8 32496 5.9 11.8 1 0 4.3 15795 2.9 25.8 0 1 4.3 21138 24.3 53.2 0 0 2.2 18859 20.6 22.8 1 1 8.6 12023 9 49.8 1 1 10.8 33272 24 39.1 1 0 2.9 22325 11.9 32.6 1 0 5.3 26147 0 67.7 1 0 8.2 33229 11.7 10.8 0 0 2.8 37970 14.6 25.5 1 1 2.4 15281 27.2 31.8 0 0 2.8 19423 17.2 35 1 1 5 26587 13.9 41.9 1 1 9.5 22963 2.6 52.9 0 1 4.3 26404 6.4 64.4 0 1…Suppose you are testing four population means with independent samples. Further suppose the populations are normally distributed and the population variances are equal. Which overall test should you use? Group of answer choices The ANOVA F-test The Welch ANOVA test The Kruskal-Wallis test The Chi-Square Goodness of Fit testTreatment Placebo A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts. P2 27 30 2.39 2.67 0.92 0.65 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? |OA Ho H1 H2 O B. Ho H1 Hz The test statistic, t, is. (Round to two decimal places as needed.) The P-value is . (Round to three decimal places as needed.) State the conclusion for the test. O A. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. O B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that the…Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. 28 28 0.56 0.41 0.84 1.06 H1: 41> H2 The test statistic, t, is 0.59. (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.)Single-Sample z test. Here are the Degree of Reading Power (DRP) scores for a random sample of 10 third grade students in the Albany City school district: 31, 27, 38, 34, 42, 28, 26, 43, 46, 27 You wonder whether the mean score of this sample is greater than the population mean of all third grade students in the Albany City school district, which is 30. Suppose scores on the DRP are known to be normally distributed with a population standard deviation of 11. Step 1) Population 1 (Sample): Population 2: Null Hypothesis (H0): Research Hypothesis (H1): Step 2) Determine the characteristics of the comparison distribution. Sample Mean = M = _________ Mean of the population = μ = ________ Population standard deviation = = _________ Standard deviation of distribution of means = = __________ Step 3) Determine the cutoff score on the z distribution (use a 0.05 p value). Cut-off score = _________ Step 4) Determine your sample’s z score. z = ___________ Step…Given the population mean hypothesis H0: μ = 150 and H1: μ ≠ 150 identify the the type of test distribution. (A) Right-tail test (B) Two-tail test (C) Left-tail test (D) None of theseA researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study. Complete parts a) through e) below. Click here to view the sample data. Click here to view Student's t-distribution table. D. The samples are independent. E. The samples can be reasonably assumed to be random. c) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a = 0.01 level of significance. Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Ho: Hcommunity college = Hno transfer: H1: Hcommunity college…Quesition is attaced thank youTreatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure u of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. H1 H2 In 10 10 0.56 0.37 0.97 1.45 O B. Ho: H1 + H2 O A. Ho: H1 = H2 H1: H1 # H2 H1: H1 H2 H1: H12 H2 The test statistic, t, is|. (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. V the null hypothesis. There V sufficient evidence to support the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. Is it valid to argue that magnets might appear to be effective if the…Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. H2 25 25 0.53 0.46 0.93 1.01 O C. Ho: H1=H2 H1: Hy # H2 O D. 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