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Mr. Reid collected a random sample of golfers playing at a g…

Mr. Reid collected a random sample of golfers playing at a golf course during the month of July last year.  He asked them how much money, in total, their golf clubs cost.  He constructed a confidence interval estimate in dollars and obtained, (1386,  1614). Blank 1:  What sample mean cost did Mr. Reid find in his sample?  Type in your answer here.  On your work sheet, label this problem 3 and show the work.  Give the units! Blank 2: What is the margin of error for this interval?  Give the answer here but show your work on your work sheet.  Give the units (hint – should be the same units as part 1)

In a random sample of 300 tables at a restaurant, 81 ordered…

In a random sample of 300 tables at a restaurant, 81 ordered a bottle of wine.  Using a formula based on a theoretical distribution from chapter 6, construct and interpret the 90% confidence interval estimate for the population proportion of tables at this restaurant ordering a wine bottle.  Be sure to show all work on your scrap sheet to submit after the quiz.  In blank 1 type in your final confidence interval.  This is wrong, but it should look like (0.473, 0.514).  You can round to the third decimal digit in the final endpoints if you’d like.