Question

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of

1252

chips and standard deviation

129

chips.

(a) What is the probability that a randomly selected bag contains between

1000

and

1400

chocolate chips, inclusive?

(b) What is the probability that a randomly selected bag contains fewer than

1000

chocolate chips?

(c) What proportion of bags contains more than

1200

chocolate chips?

(d) What is the percentile rank of a bag that contains

1475

chocolate chips?

Answer #1

Solution-

Given data,

Mean = 1252

Standard deviations = 129

Chocolate chips are approximately normally distributed.

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with a mean of
1252 chips and standard deviation 129 chips. (a) What is the
probability that a randomly selected bag contains between 1000 and
1400 chocolate chips, inclusive? (b) What is the probability that
a randomly selected bag contains fewer than 1100 chocolate chips?
(c) What proportion of bags contains more than 1200 chocolate
chips? (d) What is the percentile rank of...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with a mean of
1252 chips and standard deviation 129 chips.
(a) What is the probability that a randomly selected bag
contains between 1100 and 1500 chocolate chips, inclusive?
(b) What is the probability that a randomly selected bag
contains fewer than 1050 chocolate chips?
(c) What proportion of bags contains more than 1200 chocolate
chips?
(d) What is the percentile rank of...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with a mean of
1252 chips and standard deviation 129 chips. (a) What is the
probability that a randomly selected bag contains between 1000 and
1400 chocolate chips, inclusive (b) What is the probability that
a randomly selected bag contains fewer than 1125 chocolate chips
(c) What proportion of bags contains more than 1225 chocolate
chips (d) What is the percentile rank of...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with mean 1252
and standard deviation 129 chips.
(a) What is the probability that a randomly selected bag
contains between 1100 and 1400 chocolate chips?
(b) What is the probability that a randomly selected bag
contains fewer than 1100 chocolate chips?
(c) What proportion of bags contains more than 1200 chocolate
chips?
(d) What is the percentile rank of a bag that contains...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with a mean of
1252 chips and standard deviation
129 chips.
(a) What is the probability that a randomly selected bag
contains between 1100 and 1500 chocolate chips, inclusive?
(b) What is the probability that a randomly selected bag
contains fewer than 1050 chocolate chips?
(c) What proportion of bags contains more than 1200 chocolate
chips?
(d) What is the percentile rank of...

The number of chocolate chips in an? 18-ounce bag of chocolate
chip cookies is approximately normally distributed with mean 1252
and standard deviation 129 chips.
?(a) What is the probability that a randomly
selected bag contains between 1100 and 1400 chocolate? chips?
?(b) What is the probability that a randomly
selected bag contains fewer than 1025 chocolate? chips?
?(c) What proportion of bags contains more than
1200 chocolate? chips?
?(d) What is the percentile rank of a bag that
contains...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with a mean of
1252 chips and standard deviation 129 chips. (a) What is the
probability that a randomly selected bag contains between 1000 and
1500 chocolate chips, inclusive? (b) What is the probability that
a randomly selected bag contains fewer than 1125 chocolate chips?
(c) What proportion of bags contains more than 1175 chocolate
chips? (d) What is the percentile rank of...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with mean
1252
and standard deviation
129
chips.
(a) What is the probability that a randomly selected bag
contains between
1100
and
1500
chocolate chips?
(b) What is the probability that a randomly selected bag
contains fewer than
1050
chocolate chips?
(c) What proportion of bags contains more than
1200
chocolate chips?
(d) What is the percentile rank of a bag that contains...

The number of chocolate chips in an 18-ounce bag of chocolate
chip cookies is approximately normally distributed with mean
12521252
and standard deviation
129129
chips.
(a) What is the probability that a randomly selected bag
contains between
11001100
and
15001500
chocolate chips?
(b) What is the probability that a randomly selected bag
contains fewer than
11001100
chocolate chips?
(c) What proportion of bags contains more than
11751175
chocolate chips?
(d) What is the percentile rank of a bag that contains...

4. The number of chocolate chips in an 18-ounce bag of Chips
Ahoy! cookies is approximately normally distributed with a mean of
µ = 1262 chips and standard deviation σ = 188 chips. Source: Brad
Warner and Jim Rutledge, Chance, 12(1): 10-14, 1999
(a) (3 points) What is the probability that a randomly selected
18-ounce bag of Chips Ahoy! contains between 1000 and 1400
chocolate chips, inclusive? Round your answer to 4 decimal places.
Problem 4 continued:
(b) (3 points)...

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