Answer letters b, c and d. Use image two as to determine the p value and point estimate 2. SWIMMER'S FLEXIBILITY STUDYSome statisticsBefore:mean = 19.4160; median = 18.46After:mean = 18.8433; median = 18.86Let difference = before – afterd = 0.5727md = 0.95Wilk-Shapiro Test for Normalitydata:beforedata:afterdata:differenceW = 0.96992W = 0.92695p-value = 0.2456W = 0.97168p-value = 0.8821p-value = 0.8569Ha: not equal to 0t = 1.7819p-valueStudent's t-test on Paired Samples: Before vs AfterHa: less than 0t = 1.7819Ha: greater than 0t = 1.7819p-value = 0.04823= 0.09646p-value = 0.9518Ha: not equal to 0V = 89.5p-value = 0.09947Wilcoxon Matched-Pairs Signed Ranks Test: Before vs AfterHa: less than 0V = 89.5p-value = 0.9558Ha: greater than 0V = 89.5p-value = 0.04974F-test for Equality of VariancesF = 1.1255p-value= 0.828Student's t-test on Two Independent Pop'n Means: Before vs AfterHa: not equal to 0t = 0.58311p-value = 0.5645Ha: less than 0t = 0.58311p-value = 0.7178Ha: greater than 0t = 0.58311p-value = 0.2822Ha: not equal to 0t = 0.58311p-value = 0.5645Welch's t-test on Two Independent Pop'n Means: Before vs AfterHa: less than 0t = 0.58311Ha: greater than 0t = 0.58311p-value = 0.7177p-value = 0.2823Ha: not equal to 0W = 120p-value = 0.7748Mann-Whitney Test on Two Independent Pop'n Means: Before vs AfterHa: less than 0W = 120Ha: greater than 0W = 120p-value = 0.6281p-value = 0.3874 2. SWIMMER'S FLEXIBILITY STUDYSwimming requires complete body movement as defined in sports science. A swimmer'sflexibility helps in his/her movement in water, thus making him/her a faster swimmer. In astudy conducted to determine if there is an improvement in swim speed after doingflexibility exercise, 15 swimmers of the same characteristics were randomly selected. Theywere asked to do a 25-m freestyle and their swim speed (in seconds) were recorded. Afterthis, a flexibility exercise was done. All'the swimmers were then asked to do another 25-m freestyle and their swim speed (in seconds) were also recorded.".(Use before after in your computations)Swimmer478Before16.8719.4220.0422.8224.2417.7623.9117.17After15.8218.4720.4321.7623.8818.1220.9616.03Swimmer101112131415Before17.4515.5322.1518.2616.6520.5118.46After18.4815.4120.9119.1814.4518.8619.89a. The samples above are related (self-pair) (related/independent) samples.b. At 5% alpha, perform test(s) to determine which test procedure should be usedto compare the two populations involved. For EACH test, indicate the following:Ho (in words):Ha (in words):Test Procedure:follows normal distributiondoes not follow normal distributionp-value:Conclusion:c. Based on the results in #2b, the appropriate test procedure to answer theobjective of the researchers is atest procedure.(parametric/non-parametric)d. A point estimate of the average difference in swim speed of swimmers beforeand after doing flexibility exercise is

Question

Answer letters b, c and d. Use image two as to determine the p value and point estimate 2. SWIMMER'S FLEXIBILITY STUDYSome statisticsBefore:mean = 19.4160; median = 18.46After:mean = 18.8433; median = 18.86Let difference = before – afterd = 0.5727md = 0.95Wilk-Shapiro Test for Normalitydata:beforedata:afterdata:differenceW = 0.96992W = 0.92695p-value = 0.2456W = 0.97168p-value = 0.8821p-value = 0.8569Ha: not equal to 0t = 1.7819p-valueStudent's t-test on Paired Samples: Before vs AfterHa: less than 0t = 1.7819Ha: greater than 0t = 1.7819p-value = 0.04823= 0.09646p-value = 0.9518Ha: not equal to 0V = 89.5p-value = 0.09947Wilcoxon Matched-Pairs Signed Ranks Test: Before vs AfterHa: less than 0V = 89.5p-value = 0.9558Ha: greater than 0V = 89.5p-value = 0.04974F-test for Equality of VariancesF = 1.1255p-value= 0.828Student's t-test on Two Independent Pop'n Means: Before vs AfterHa: not equal to 0t = 0.58311p-value = 0.5645Ha: less than 0t = 0.58311p-value = 0.7178Ha: greater than 0t = 0.58311p-value = 0.2822Ha: not equal to 0t = 0.58311p-value = 0.5645Welch's t-test on Two Independent Pop'n Means: Before vs AfterHa: less than 0t = 0.58311Ha: greater than 0t = 0.58311p-value = 0.7177p-value = 0.2823Ha: not equal to 0W = 120p-value = 0.7748Mann-Whitney Test on Two Independent Pop'n Means: Before vs AfterHa: less than 0W = 120Ha: greater than 0W = 120p-value = 0.6281p-value = 0.3874 2. SWIMMER'S FLEXIBILITY STUDYSwimming requires complete body movement as defined in sports science. A swimmer'sflexibility helps in his/her movement in water, thus making him/her a faster swimmer. In astudy conducted to determine if there is an improvement in swim speed after doingflexibility exercise, 15 swimmers of the same characteristics were randomly selected. Theywere asked to do a 25-m freestyle and their swim speed (in seconds) were recorded. Afterthis, a flexibility exercise was done. All'the swimmers were then asked to do another 25-m freestyle and their swim speed (in seconds) were also recorded.&#34;.(Use before after in your computations)Swimmer478Before16.8719.4220.0422.8224.2417.7623.9117.17After15.8218.4720.4321.7623.8818.1220.9616.03Swimmer101112131415Before17.4515.5322.1518.2616.6520.5118.46After18.4815.4120.9119.1814.4518.8619.89a. The samples above are related (self-pair) (related/independent) samples.b. At 5% alpha, perform test(s) to determine which test procedure should be usedto compare the two populations involved. For EACH test, indicate the following:Ho (in words):Ha (in words):Test Procedure:follows normal distributiondoes not follow normal distributionp-value:Conclusion:c. Based on the results in #2b, the appropriate test procedure to answer theobjective of the researchers is atest procedure.(parametric/non-parametric)d. A point estimate of the average difference in swim speed of swimmers beforeand after doing flexibility exercise is

Accepted Answer

we will use shapiro wilk test for normality of data.