Finding Probabilities in Normal Distributions A manufacturer produces items whose lengths are normally distributed with a...
Finding Probabilities in Normal Distributions
A manufacturer produces items whose lengths are normally
distributed with a mean of 19.1 inches and standard deviation of
5.5 inches.
If one item is chosen at random, what is the probability that it's
length is less than 19.6 inches? Round answer to 3 decimal
places.
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Finding Probabilities in Normal
Distributions
A manufacturer produces items whose lengths are normally
distributed with a...
Question 3: a.) A manufacturer knows that their items have a normally distributed length, with a...
Question 3: a.) A manufacturer knows that their items have a normally distributed length, with a mean of 19.6 inches, and standard deviation of 2.4 inches. If 4 items are chosen at random, what is the probability that their mean length is less than 17.5 inches? b.) A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.5 years, and standard deviation of 0.7 years. If you randomly purchase 14 items, what is the probability...
Question 1 A manufacturer knows that their items have a lengths that are approximately normally distributed,...
Question 1 A manufacturer knows that their items have a lengths that are approximately normally distributed, with a mean of 16.7 inches, and standard deviation of 2.7 inches. If 41 items are chosen at random, what is the probability that their mean length is greater than 16.7 inches? (Round answer to four decimal places) Question Help: Message instructor Submit Question
A manufacturer knows that their items have a normally distributed length, with a mean of 13.3...
A manufacturer knows that their items have a normally distributed length, with a mean of 13.3 inches, and standard deviation of 3.6 inches. If one item is chosen at random, what is the probability that it is less than 21.4 inches long?
A manufacturer knows that their items have a normally distributed length, with a mean of 11.4...
A manufacturer knows that their items have a normally distributed length, with a mean of 11.4 inches, and standard deviation of 3.1 inches. If one item is chosen at random, what is the probability that it is less than 8.2 inches long?
A manufacturer knows that their items have a normally distributed length, with a mean of 16...
A manufacturer knows that their items have a normally distributed length, with a mean of 16 inches, and standard deviation of 2.6 inches. If one item is chosen at random, what is the probability that it is less than 16.8 inches long?
A manufacturer knows that their items have a normally distributed length, with a mean of 14.2...
A manufacturer knows that their items have a normally distributed length, with a mean of 14.2 inches, and standard deviation of 1.6 inches. If one item is chosen at random, what is the probability that it is less than 11.2 inches long?
A manufacturer knows that their items have a lengths that are approximately normally distributed, with a...
A manufacturer knows that their items have a lengths that are approximately normally distributed, with a mean of 5.7 inches, and standard deviation of 1.4 inches. If 36 items are chosen at random, what is the probability that their mean length is greater than 5.5 inches? According to a survey, 10% of Americans are afraid to fly. Suppose 1100 Americans are sampled. a) What is the probability that 121 or more americans in the survey are afraid to fly? Write...
1) a) A manufacturer knows that their items have a normally distributed length, with a mean...
1) a) A manufacturer knows that their items have a normally distributed length, with a mean of 13.4 inches, and standard deviation of 2 inches. If one item is chosen at random, what is the probability that it is less than 7.5 inches long? b) A manufacturer knows that their items lifespans are normally distributed with mean = 14.2 and standard deviation = 3.9. What proportion of the items' lifespans will be longer than 25 years? c) A particular fruit's...
A manufacturer knows that their items have a normally distributed length, with a mean of 18...
A manufacturer knows that their items have a normally distributed length, with a mean of 18 inches, and standard deviation of 5.7 inches. If one item is chosen at random, what is the probability that it is less than 13 inches long? 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 you randomly purchase one item, what is the probability it will last longer than...
A manufacturer knows that their items have a normally distributed length, with a mean of 18.8...
A manufacturer knows that their items have a normally distributed length, with a mean of 18.8 inches, and standard deviation of 1.5 inches. If 10 items are chosen at random, what is the probability that their mean length is less than 17.7 inches?
Question 1 A manufacturer knows that their items have a lengths that are approximately normally distributed, with a mean of 16.7 inches, and standard deviation of 2.7 inches. If 41 items are chosen at random, what is the probability that their mean length is greater than 16.7 inches? (Round answer to four decimal places) Question Help: Message instructor Submit Question
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