Question

Assume that the men's weight is normally distributed with an
average of 172 pounds and a standard deviation of 29 pounds.

to. Define a variable

b. Associate the random variable with a distribution and its
parameters

c. If a man is selected at random, what is the probability
that his weight is greater than 175 pounds? (minitab)

D. If a sample of 20 men is chosen at random. What is the
probability that the average weight is greater than 175 lb?
(minitab)

Answer #1

Assume that the population of weights of men is normally
distributed with mean 172 lb and standard deviation 29 lb. a. If an
individual man is randomly selected, find the probability that his
weight will be greater than 175 lb. (Round to four decimal places
as needed.) b. Find the probability that 20 randomly selected men
will have a mean weight that is greater than 175 lb. (Round to four
decimal places as needed.) show work

Assume that the population of weights of men is normally
distributed with mean 172 lb and standard deviation 29 lb.
a. If an individual man is randomly selected,
find the probability that his weight will be greater than 175 lb.
(Round to four decimal places as needed.)
b. Find the probability that 20 randomly selected men will have
a mean weight that is greater than 175 lb. (Round to four decimal
places as needed.)
Please show all work as if...

Assume that the weight of marbles are normally distributed with
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selected, find the probability that they have a mean weight between
167 grams and 180 grams.

Weights of wrestlers are normally distributed with an average
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the probability that the average weight of the group will be less
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Assume that the average weight of an NFL player is 245.7 pounds
with a standard deviation of 34.5 pounds, but the probability
distribution is unknown.
a. if a random sample of 32 NFL players is selected, what is
the probabilty that the average weight of the sample sill be less
than 234 pounds?
b. If a random sample of 32 NFL players is selected, what is
the probability that the average weight of the sample is between
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The weight of a newborn elephant is normally distributed with a
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a) Define the random variable of interest.
b) State the distribution of X.
c) What is the probability that its weight is more than 95
kg?
d) What is the probability that its weight is not 100 kg?
e) What is the mean weight?

The weight of a 5th grader is normally distributed with a mean
of 69 pounds and a variance of 71 pounds^2. Let weight, in pounds,
be represented by random variable X.
P(65 < X < x2) = 0.0990. Find x2 (in pounds).

The weight of a 5th grader is normally distributed with a mean
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be represented by random variable X.
P(76<X<x2)= 0.1330. Find x2

1. The weights of a certain brand of candies are normally
distributed with a mean weight of 0.8542 g and a standard deviation
of 0.0521 g. A sample of these candies came from a package
containing 454 candies, and the package label stated that the net
weight is 387.3 g. (If every package has 454 candies, the mean
weight of the candies must exceed 387.3 Over 454= 0.8531
g for the net contents to weigh at least 387.3 g.) a. If...

The weights of bowling balls are normally distributed with mean
11.5 pounds and standard deviation 2.7 pounds. A sample of 36
bowling balls is selected. What is the probability that the average
weight of the sample is less than 11.03 pounds?

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