Question
In: Statistics and Probability
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.2...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 5.2 years, and standard
deviation of 0.6 years.
The 4% of items with the shortest lifespan will last less than how
many years?
Give your answer to one decimal place.
A particular fruit's weights are normally distributed, with a
mean of 597 grams and a standard deviation of 16 grams.
The heaviest 6% of fruits weigh more than how many grams?
Give your answer to the nearest gram.
The mean daily production of a herd of cows is assumed to be
normally distributed with a mean of 31 liters, and standard
deviation of 10.1 liters.
A) What is the probability that daily production is
between 38.6 and 54.5 liters? Do not round until
you get your your final answer.
Answer= (Round your answer to 4 decimal places.)
Warning: Do not use the Z Normal Tables...they may not be accurate
enough since WAMAP may look for more accuracy than comes from the
table.
Solutions
orchestra answered 2 years agoRelated Solutions
A.) A manufacturer knows that their items have a normally distributed lifespan, with a mean of...
A.) A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 6.9 years, and standard
deviation of 1 years. If you randomly purchase one item, what is
the probability it will last longer than 9 years?
B.) A particular fruit's weights are normally distributed, with
a mean of 784 grams and a standard deviation of 24 grams. If you
pick one fruit at random, what is the probability that it will
weigh between 845 grams...
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 7 years, and standard
deviation of 1.6 years.
If you randomly purchase one item, what is the probability it will
last longer than 11 years?
1. A manufacturer knows that their items have a normally distributed lifespan, with a mean of...
1. A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 14.1 years, and standard
deviation of 2.8 years.
If you randomly purchase one item, what is the probability it will
last longer than 20 years?
2.
A particular fruit's weights are normally distributed, with a
mean of 506 grams and a standard deviation of 21 grams.
If you pick one fruit at random, what is the probability that it
will weigh between 475 grams...
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.7...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 2.7 years, and standard
deviation of 0.7 years.
If 6 items are picked at random, 4% of the time their mean life
will be less than how many years?
Give your answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 10 years, and standard
deviation of 1.8 years.
If 20 items are picked at random, 2% of the time their mean life
will be less than how many years?
Give your answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.4...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 7.4 years, and standard
deviation of 0.6 years. If 13 items are picked at random, 8% of the
time their mean life will be less than how many years? Give your
answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 12 years, and standard
deviation of 0.5 years. If 5 items are picked at random, 4% of the
time their mean life will be less than how many years? Give your
answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 3 years, and standard
deviation of 0.6 years.
If you randomly purchase 17 items, what is the probability that
their mean life will be longer than 3 years?
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 12 years, and standard
deviation of 0.5 years. If 5 items are picked at random, 4% of the
time their mean life will be less than how many years? Give your
answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.3...
A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 10.3 years, and standard
deviation of 2.4 years.
If you randomly purchase 21 items, what is the probability that
their mean life will be longer than 11 years? (Give answer to 4
decimal places.)
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