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Effect of Blinding Among 13,200 submitted abstracts that were blindly evaluated (with authors and institutions not identified), 26.7% were accepted for publication. Among 13,433 abstracts that were not blindly evaluated, 29.0% were accepted (based on data from “Effect of Blinded Peer Review on Abstract Acceptance,” by Ross, et al., Journal of the American Medical Association, Vol. 295, No. 14). Use a 0.01 significance level to test the claim that the acceptance rate is the same with or without blinding. How might the results be explained?
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- The Survey of Study Habits and Attitudes (SSHA) is a psychological test designed to measure various academic behaviors (motivation, study habits, attitudes, etc…) of college students. Scores on the SSHA range from 0 to 200. The data for random samples 18 women (*the outlier from the original data set was removed) and 27 men yielded the following summary statistics.Is there a difference in SSHA performance based upon gender? Conduct the appropriate hypothesis test in including stating the relevant hypothesis, test statistic, p-value, and conclusion. Then, construct and interpret a 90% confidence interval for the mean differencearrow_forwardWhat is the best correlational test to use in SPSS for a research sample size of 39?arrow_forwardWhat is the P value?arrow_forward
- The respiratory disturbance index (RDI), which is the number of apneic and hypopneic episodes per hour of sleep, was used as a measure of severity of sleep apnea. An RDI of 5 or more indicates sleep-related breathing disturbances. The RDIs for the females and males samples in a study in US are as follows. At the 1% significance level, do the data provide sufficient evidence to conclude that the female patients are less suffer than male from the apnea disease?arrow_forwardReport an appropriate hypothesis test and use a 5% significance level. The alternative hypothesis for the One-way Anova F-test would be Group of answer choices Ha: Density affects firing temperature. Ha: Firing temperature affects density. Ha: Firing temperature does not affect density. Ha: Density does not affect firing temperature.arrow_forwardPreventable chronic diseases are increasing rapidly in Native American populations, particularly diabetes. F. Gilliland et al. examined the diabetes issue in the paper ”Preventative Health Care among Rural American Indiansin New Mexico”. Following is a contingency table showing cross-classification of educational attainment and diabetic state for a sample of 1273 Native Americans (HS is high school). At the 1% significance level, do the data provide sufficient evidence to conclude that an association exists between educational level and diabetic state for Native Americans?arrow_forward
- Examus cdn.studentuae.examus.netridban3D1&sessi... Choose the correct answer for the following question: A simple random sample of front-seat occupants involved in car crashes is obtained. Among 1550 occupants not wearing seat belts, 12 were killed. Among 6500 occupants wearing seat belts, 12 were killed. Using this data with 0.05 significance level to test the claim that the fatality rate is higher for those not wearing seat belts, the alternative hypothesis is given as ct912 10 a. 362 b. H:P1 SP2 C. Hj: p P2 cf917 d. Hj: p>P2 ce362dcf917 ce362dct917 ce3624ci917 362dcf917 ce362acf917 ce362dcf917 0% ce362dcf917 MacBook Pro 7. e362dcf917 C0 P.arrow_forwardA researcher wanted to examine whether type of dog food (freeze dried meat vs generic brand kibble) would affect dogs’ attention span. The researcher hypothesized that dogs who ate freeze dried meat would have longer attention spans than those who ate generic brand kibble. The researcher used a single sample of 13 subjects, that took part in both treatment conditions. What is the appropriate statistical test to use? single-sample t-test related-samples t-test independent-samples t-test z-test for sample meanarrow_forwardCould someone help with this please? Thanks!arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning