Question

A waitress believes the distribution of her tips has a model that is slightly skewed to the right , with a mean of $9.50 and a standard deviation of $4.80 She usually waits on about 30 parties over a weekend of work.

a) Estimate the probability that she will earn at least $300. (Round to four decimal places as needed.)

.b) How much does she earn on the best 5%of such weekends? (Round to two decimal places as needed.)

Answer #1

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 $6.80. She usually waits on about 40 parties
over a weekend of work. a) Estimate the probability that she will
earn at least $500. b) How much does she earn on the best 1% of
such weekends?

A waitress believes the distribution of her tips has a model
that is slightly skewed to the right, with a mean of $10.60 and a
standard deviation of $6.40. She usually waits on about 50 parties
over a weekend of work. a) Estimate the probability that she will
earn at least $650. b) How much does she earn on the best 1% of
such weekends

A waitress believes the distribution of her tips has a model
that is slightly skewed to the right, with a mean of $10.80 and a
standard deviation of $5.40. She usually waits on about 60 parties
over a weekend of work.
a) Estimate the probability that she will earn at least $750.
b) How much does she earn on the best 10% of such
weekends?

A waitress believes the distribution of her tips has a model
that is slightly skewed to the left, with a mean of $9.70 and a
standard deviation of $5.20. She usually waits on about 60 parties
over a weekend of work.
A) Estimate the probability that she will earn at least
$700?
B) How much does she earn on the best 5% of such weekends?

A waiterwaiter believes the distribution of hishis tips has a
model that is slightly skewed to the left, with a mean of $9.30
and a standard deviation of $5.60.HeHe usually waits on about 50
parties over a weekend of work.
a) Estimate the probability that hehe will earn at least
$550.
b) How much does hehe earn on the best 1%of such
weekends?
a) P(tips from 50 partiesgreater than>$550)equals=
nothing
(Round to four decimal places as needed.)
b) The total...

A waiter believes the distribution of his tips has a model that
is slightly skewed to the left, with a mean of $8.40 and a
standard deviation of $6.50. He usually waits on about 60 parties
over a weekend of work.
a) Estimate the probability that he will earn at least
$550.
b) How much does he earn on the best 10% of such
weekends?

A waiter believes the distribution of his tips has a model that
is slightly skewed to the left?, with a mean of ?$10.50 and a
standard deviation of ?$6.60. He usually waits on about 50 parties
over a weekend of work. ?
a) Estimate the probability that he will earn at least ?$600.
?
b) How much does he earn on the best 5?% of such? weekends?
PLEASE MAKE SURE IT IS CORRECT BECAUSE I ALREADY POSTED
IT , THE...

Question 1 (1 point)
A population is slightly skewed to the right, has a mean of 75
and a standard deviation of 7. If a random sample of 28 items are
selected from this population, then the mean score of these 28
items is from a sampling distribution that has a mean of ...
Your Answer:
Question 1 options:
Answer
Question 2 (1 point)
A population is slightly skewed to the left, has a mean of 71
and a standard...

A
grocery store’s reciepts show that Sunday customer purchases have a
skewed distribution with a mean of $32 and a standard deviation of
$20. Complete parts a through c below.
-Multiple choice-
1.) Explain why you cannot determime the probability that the
next Sunday customer will spend at least $40.
a.) The probability can only be determimed if the point is
less than one standard deviation away from the mean
b.) The probability can only be determimed if the point...

1. Find the area under the standard normal curve (round to four
decimal places)
a. To the left of z=1.65
b. To the right of z = 0.54
c. Between z = -2.05 and z = 1.05
2. Find the z-score that has an area of 0.23 to its right.
3. The average height of a certain group of children is 49
inches with a standard deviation of 3 inches. If the heights are
normally distributed, find the probability that a...

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