A sports writer wished to see if a football filled with helium travels farther, on average, than a football filled with air. To test this, the writer used 18adult male volunteers. These volunteers were randomly divided into two groups of 9 subjects each. Group 1 kicked a football filled with helium tothe recommended pressure. Group 2 kicked a football filled with air to the recommended pressure. The mean yardage for group 1 was x_bar1 =30 yards, with a standard deviation s, = 8 yards. The mean yardage for group 2 was x_bar2 = 26 yards, with a standard deviation s, = 6 yards.Assume the two groups of kicks are independent. Let u1 and u2 represent the mean yardage we would observe for the entire populationrepresented by the volunteers if all members of this population kicked, respectively, a helium and an airfilled football. Assume that two-sample t-procedures are safe to use. Suppose the researcher had wished to test the hypotheses. Suppose the researcher had wished to test thehypothesesH,: H, = 2, Ha:P,>The P-value for the test is (use the conservative Approach)Select one:O a. between 0.05 and 0.01.O b. below 0.01.O c. between 0.10 and 0.05.O d. larger than 0.10.

The p value are used to measure the significance difference the sample and population. We can also…

Answered: A sports writer wished to see if a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A particular fruit's weights are normally distributed, with a mean of 382 grams and a standard deviation of 15 grams.The heaviest 14% of fruits weigh more than how many grams?Give your answer to the nearest gram.
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Reports on a student's ACT, SAT, or MCAT usually give the percentile as well as the actual score. The percentile is the cumulative proportion stated as a percentage: the percentage of all scores that were lower than this one. In 2019, the scores on the Mathematics portion of the SAT were close to Normal, with mean 528528 and standard deviation 117. Joseph scored 411.411. What was his percentile?
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