The length of African elephant's trunks is Normally distributed with a mean of 51.3 inches and...

The length of African elephant's trunks is Normally distributed with a mean of 51.3 inches and a standard deviation of 6.2 inches. What percent of all African elephant trunks are longer than 50 inches? Round your answer decimal to 2 places after the decimal. Then change your answer to a percent. (So you will be rounding to the nearest percent.). Write your answer as a percent, but do not put the percent symbol in your answer.

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orchestra answered 2 years ago

The heights of South African men are Normally distributed with a mean of 69 inches and...

The heights of South African men are Normally distributed with a mean of 69 inches and a standard deviation of 4 inches. Reference: Ref 6-1 If a random sample of three South African men were selected at random, what is the probability that the sample mean height is greater than 72 inches? A.0.2266 B.0.0122 C. 0.0968 D.0.9032

The heights of South African men are normally distributed with a mean of 69 inches and...

The heights of South African men are normally distributed with a mean of 69 inches and a standard deviation of 4 inches. What is the probability that a randomly selected South African man is taller than 72 inches (sample size of 1)? What is the probability that a sample of 100 has a mean greater than 72 inches?

The length of western rattlesnakes are normally distributed with a mean of 60 inches and a...

The length of western rattlesnakes are normally distributed with a mean of 60 inches and a standard deviation of 4 inches. Enter answers as a decimal rounded to 4 decimal places with a 0 to the left of the decimal point. A) Suppose a rattlesnake is found on a mountain trail: a. What is the probability that the rattlesnakes' length will be equal to or less than 54.2 inches? B) What is the probability its' length will be equal to...

The heights of tulips are normally distributed with a mean of 13.1 inches and a standard...

The heights of tulips are normally distributed with a mean of 13.1 inches and a standard deviation of 1.2 inches. What is the probability that a tulip is more than 14 inches tall? (round to 3 decimal places) What is the probability that a tulip is less than 11.5 inches tall? (round to 3 decimal places) What is the probability that a tulip is between 13.5 and 14.0 inches tall (round to 3 decimal places) What is the minimum height...

heights of women are normally distributed with a mean of 63.6 inches and a std.dev of...

heights of women are normally distributed with a mean of 63.6 inches and a std.dev of 2.5 find the 83rd percentile if one woman is randomly selected find the probability she has a height greater thanks 6 ft if 16 women are randomly selected find the prob their mean weight is greater than 5’6

Assume that the heights of men are normally distributed with a mean of 70.7 inches and...

Assume that the heights of men are normally distributed with a mean of 70.7 inches and a standard deviation of 2.8 inches. If 64 men are randomly selected, Find:- (a) Describe the sampling distribution of x. Sketch the distribution. (b) Find the probability that they have a mean height greater than 71.7 inches. (c) Find the probability that they have a mean height between 68.5 and 73 inches. (d) Find the 95th percentile of the heights of men.

Assume that the heights of men are normally distributed with a mean of 68.1 inches and...

Assume that the heights of men are normally distributed with a mean of 68.1 inches and a standard deviation of 2.8 inches. If 64 men are randomly selected, find the probability that they have a mean height greater than 69.1 inches. (Round your answer to three decimal places.)

The height of plants is normally distributed with a mean of 32 inches and a standard...

The height of plants is normally distributed with a mean of 32 inches and a standard deviation of 8 inches. What is the probability that the average height of a sample of 25 plants is greater than 30 inches

The lengths of earthworms are normally distributed with a mean of 3.2 inches and a standard...

The lengths of earthworms are normally distributed with a mean of 3.2 inches and a standard deviation of 0.8 inches. A. What is the probability that a sample of 40 worms has a mean length of at least 3 inches? B. What is the probability that Freddy the earthworm is between 2.5 in and 4.0 in long? C. If I dig up a random sample of 25 earthworms, what is the probability that the mean nl _______ length in the...

Women's heights are normally distributed with mean 64 inches and a standard deviation of 2.5 inches....

Women's heights are normally distributed with mean 64 inches and a standard deviation of 2.5 inches. (a) What percent of women are less than 60 inches tall? (b) The requirement of all Navy pilots is between 62 inches and 78 inches. What percent of women meet the Navy requirement? (c) If the Navy changed its requirement to eliminate the "shortest" 5% of all women, what would the requirement be on the lower end of the scale?

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