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(Solved by Expert Tutors) hw5 Please answer question and show R code (like last time). Thank you!



10. Golffee.txt?gives the fees (cost in $) to play an 18-hole round of golf on a weekday for a random sample of 29 golf courses from the approximately 19,000 courses stored on the web site www.golfcourse.com.

a. Find a 95% confidence interval for the mean cost of playing 18 holes on a weekday (Assume that the population SD ? is known and equal to the sample

SD s)
b. Conduct a hypothesis test (with two-sided alternative) that the mean cost of?playing 18 holes is $25. Use a 0.05 level test to decide whether or not to reject the null hypothesis. Be sure to state your null and alternative hypotheses. What is the p-value of your test?


 

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Apr 19, 2020

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