Based on these results, t(60) = -1.67, p = .11, the reading scores of males (M = 31.54, SD = 5.16, n = 29) and females were compared (M = 32.46, SD = 4.96, n = 65). What can be concluded based on these results?
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Based on these results, t(60) = -1.67, p = .11, the reading scores of males (M = 31.54, SD = 5.16, n = 29) and females were compared (M = 32.46, SD = 4.96, n = 65). What can be concluded based on these results?
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- After testing 40 participants, a significant x2obt of 13.31 was obtained. With a .05 and df 2, how would this result be reported in a publication In your own words please not copied from the internetPrevious research has established that nationwide, for older adults, the average score on the Beck Depression Inventory (BDI-II) is 8.13 with σ = 1.56. A researcher working in a nursing home wants to know if depression levels are different for older adults living in a nursing home compared to older adults nationwide. He takes a random sample of 200 adults living in a nursing home facility and gives them each the BDI-II. The average for his sample is 8.45. Is there a difference in the BDI-II scores of those living in a nursing home compared to those living in their own homes? Test with an a = 0.01.Compare the two separate scatterplots. In particular, how do the associtation compare between women with pets vs. women without pets? Does one group have more variation in systolic blood pressure than the other? If so, for which group? Does systolic blood pressure seem higher for common ages between the two groups? If so, for which group?
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- For a population of highly creative individuals with a creativity score µ = 60 and σ = 10, determine the percentage(s) associated with the particular z – score(s). What percentage of highly creative individuals have a creativity score below a z – score of + 1? What percentage of highly creative individuals have a creativity score below a z – score of + 2? What percentage of highly creative individuals have a creativity score below a z – score of + 1? What percentage of highly creative individuals have a creativity score below a z- score of – 1? What percentage of highly creative individuals have a creativity score below a z – score of – 2? What percentage of highly creative individuals have a creativity score above a z – score of – 2? What percentage of highly creative individuals have a creativity score above a z – score of – 1?andres asked if there is a relationship between the quality of sneakers worn by a sample of 20 volleyball players and their average number of point scored per game. he computed r= +.21 and immediately claimed he had evidence that better-quality sneakers are related to better performance (a) is his claim correct? why? (b) what are Ho and Ha? (c) with alpha=.05, what is rcrit ?If the value of Cronbach’s alpha is 0.07, it means ___________; a. Research instrument is not reliable b. Research instrument is internally consistent c. Data is reliable d. Data is internally consistent
- A survey among the workers in a large manufacturing company was taken, in order to findout from which company the workers had purchased their mobile phones, and to find outwhether the choice of mobile phone company was related to the type of worker. The resultsare shown in the table below. ls there evidence, at 5% level, that the choice of Phone Company is independent of the type ofworker?A question of medical interest is whether jogging leads to a reduction in systolic blood pressure. To learn about this question, eight non-jogging volunteers have agreed to begin a 1-month jogging program. At the end of the month, their blood pressures were determined and compared with earlier values. The data are presented in the Table 1. a. The appropriate hypotheses are: H0 :μ1−μ2 =0 versus Ha :μ1−μ2 /= (does not equal) 0 H0 :μ1−μ2 =0 versus Ha :μ1−μ2 <0 H0 :μ1−μ2 =0 versus Ha :μ1−μ2 >0 b. The value of test statistic is 1. 0.577 2. −0.577 3. 0.237 4. -0.237 c. The p−value of test is 1. 0.816 2. 0.408 3. 0.582 4. 0.291 d. At the significance level calculated in part (c), we conclude that jogging i. Leads to reduction in systolic blood pressureii. Does not lead to reduction in systolic blood pressureAssuming all other factors are held constant, if the df value for a two-tailed t-test with a = .05 were increased from df =6 to df = 20, what would happen to the critical values for t?