Question

A waitress believes the distribution of her tips has a model that is slightly skewed to the right, with a mean of $9.80 and a standard deviation of $4.30. She usually waits on about 50 parties over a weekend of work. a) Estimate the probability that she will earn at least $550. b) How much does she earn on the best 10% of such weekends? a) P(tips from 50 parties \geq $550) = (Round to four decimal places as needed.) b) The total amount that she earns on the best 10% of such weekends is at least $ (Round to two decimal places as needed)

          A waitress believes the distribution of her tips has a model that is slightly skewed to the right, with a mean of $9.80 and a standard deviation of $4.30. She usually waits on about 50 parties over a weekend of work.
a) Estimate the probability that she will earn at least $550.
b) How much does she earn on the best 10% of such weekends?
a) P(tips from 50 parties \geq $550) = 
(Round to four decimal places as needed.)
b) The total amount that she earns on the best 10% of such weekends is at least $
(Round to two decimal places as needed)

A waitress believes the distribution of her tips has a model that is slightly skewed to the right, with a mean of 9.80 and a standard deviation of4.30. She usually waits on about 50 parties over a weekend of work.
a) Estimate the probability that she will earn at least 550.
b) How much does she earn on the best 10% of such weekends?
a) P(tips from 50 parties ≥550) =
(Round to four decimal places as needed.)
b) The total amount that she earns on the best 10% of such weekends is at least $
(Round to two decimal places as needed)

Added by Luis W.

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