Mathematics, 22.02.2021 21:20 jaygamer37
The manager in our school cafeteria is concerned about students who ask for a water cup when
placing an order but fill the cup with a soft drink from the beverage fountain instead of filling the
cup with water. The manager selected a random sample of 80 students who asked for a water cup
when placing an order and found that 23 of those customers filled the cup with a soft drink from
the beverage fountain
• (a) Construct and interpret a 95 percent confidence interval for the proportion of all
students who, having asked for a water cup when placing an order, will fill the cup with a
soft drink from the beverage fountain.
The manager estimates that each student who asks for a water cup but fills it with a soft drink
costs the school cafeteria $0.25. Suppose that in the month of January 500 students ask for a
water cup when placing an order.
• (b) Use the confidence interval constructed in part (a) to give an interval estimate for the
cost to the restaurant for the month of January from the customers who ask for a water
cup but fill the cup with a soft drink.
Answers: 1
Mathematics, 21.06.2019 20:30, daniiltemkin20
List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6
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Mathematics, 22.06.2019 01:00, ryantrajean7
The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set
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The manager in our school cafeteria is concerned about students who ask for a water cup when
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