You may need to use the appropriate appendix table or technology to answer this question. DATA Many small restaurants in

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answerhappygod
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You may need to use the appropriate appendix table or technology to answer this question. DATA Many small restaurants in

Post by answerhappygod »

You may need to use the appropriate appendix table or technology
to answer this question.
DATA
Many small restaurants in Portland, Oregon, and other cities
across the United States do not take reservations. Owners say that
with smaller capacity, no-shows are costly, and they would rather
have their staff focused on customer service rather than
maintaining a reservation system.† However, it is important to be
able to give reasonable estimates of waiting time when customers
arrive and put their name on the waiting list. The file
RestaurantLine contains 10 observations of number of people in line
ahead of a customer (independent variable x) and actual
waiting time (in minutes) (dependent variable y). The
estimated regression equation is:
ŷ = 4.35 + 8.81x
and MSE = 94.42.
(a)
Develop a point estimate (in min) for a customer who arrives
with eight people on the wait-list. (Round your answer to two
decimal places.)
(b)
Develop a 95% confidence interval for the mean waiting time (in
min) for a customer who arrives with eight customers already in
line. (Round your answers to two decimal places.)
min to min
(c)
Develop a 95% prediction interval for Roger and Sherry Davy's
waiting time (in min) if there are eight customers in line when
they arrive. (Round your answers to two decimal places.)
min to min
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