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A physical therapist claims that one 600-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions 15

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A physical therapist claims that one 600-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions 15 males made on a hand dynamometer (measures grip strength) until the grip strengths in three consecutive trials were 50% of their maximum grip strength. At a = 0.10, is there enough evidence to support the therapist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) belov Click the icon to view the repetitions data, (a) Identify the claim and state H0 and He- What is the claim? O A. Using Vitamin C decreases muscular endurance. O B. Using a placebo increases muscular endurance. O C. Using a placebo decreases muscular endurance. O D. Using Vitamin C increases muscular endurance. Let [id be the hypothesized mean of the difference in the number of repetitions (placebo-Vitamin C). What are H0 and He? OA. Hozpdsa OB. H0:pd=0 OC. H0:pdad HEW>a Helpd'o Ha:pd0 Ha:ud= (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and ll in any answer boxes to complete your choice. (Round to three decimal places as needed.) OA- t A physical therapist claims that one GOO-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions 15 males made on a hand dynamometer (measures grip strength) until the grip strengths in three consecutive trials were 50% of their maximum grip strength. At or = 0.10, is there enough evidence to support the therapist's claim? Assume the samples are random and dependent. and the population is normally distributed. Complete parts (a) through (e) belovr E Click the icon to view the repetitions data. Select the correct choice below and ll in any answer boxes to complete your choice. (Round to three decimal places as needed.) OA. r OB. r (c) Calculate a and 5d- d: (Round to one decimal place as needed.) Calculate sd. sd = (Round to one decimal place as needed.) (d) Find the standardized test statistic t. t= (Round to three decimal places as needed.) (e) Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim. V the null hypothesis. There V enough evidence to V the claim that using V V muscular endurance

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