Maurice Tutor

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About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 408 Weeks Ago, 6 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 06 Jan 2018 My Price 8.00

barrel of a graphite

11.13       It has been claimed that flattening (“rolling”) the barrel of a graphite baseball bat can stretch the fibers   and result in a pitched baseball being returned faster than with a regulation bat. This was a controversial topic dur- ing the 2009 baseball College World Series. Assume that data file XR11013 describes the results of a controlled test

measuring the return speeds of balls pitched to a flattened bat and a regulation bat, respectively. Based on these sample results, and using a suitable one-tail test at  the 0.05 level, was the mean return speed for the flattened bat significantly greater than for the regulation bat? Identify and interpret the p-value for the test. Source: Andy Gardiner, “NCAA  on  Guard  for  ‘Rolled’  Bats,”  USA  Today,  June  17,  2009,  p. 8C.

11.14      Comparing the number  of Facebook “friends” for men and women, observers have speculated about whether the mean number of friends could be the same for each group. Assume that data file XR11014 lists the number of Facebook friends for independent samples of male and female Facebook users. Based on the results of a two-tail test at the 0.05 level, comment on whether the difference between the sample means could have simply occurred by chance. Identify and interpret the p-value for the test.

Answers

Maurice Tutor
(5)
Status NEW Posted 06 Jan 2018 10:01 PM My Price 8.00

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