1) The heights of men at a gym are normally distributed with 70n ando-3in Question Answer...
The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a standard deviation of 2.68 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.4 inches and a standard deviation of 2.53 inches. a) If a man is 6 feet 3 inches tall, what is his z-score (to two decimal places)? z = b) What percentage of men are SHORTER than 6 feet 3 inches?...
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 66 inches and standard deviation 1 inches. (a) What is the probability that an 18-year-old man selected at random is between 65 and 67 inches tall? (Round your answer to four decimal places.) (b) If a random sample of twenty 18-year-old men is selected, what is the probability that the mean height x is between 65 and 67 inches? (Round your answer to four decimal places.)
Suppose that the heights of adult men in the United States are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. What proportion of the adult men in United States are less than 6 feet tall? (Hint: 6 feet 72 inches) Round your answer to at least four decimal places. X 5 ?
2) The heights of men are normally distributed with a mean of 68.6 in and a standard deviation of 2.8 in. The heights of women are normally distributed with a mean of 63.7 in. and a standard deviation of 2.9 in. a) Find the 90th percentile of the heights of women. b) Which of these two heights is more extreme relative in the population from which it came: A woman 70 inches tall or a man 74 inches tall? Justify...
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 5 inches. (a) What is the probability that an 18-year-old man selected at random is between 67 and 69 inches tall? (Round your answer to four decimal places.) (b) If a random sample of thirteen 18-year-old men is selected, what is the probability that the mean height x is between 67 and 69 inches? (Round your answer to four decimal places.)
Heights of men are normally distributed with a mean of 176 cm and a standard deviation of 7 cm. What is the approximate percentage of men greater than 155 cm?
Assume the heights of men 18 to 24 are approximately normally distributed with μ=70 inches, 3.0 is the standard deviation. A. What percent of men in this age group are taller than 74 inches? Z-score is _____ P-value__________ (hint give the percentage). B. What percent of men in this age group are taller than 65 inches? Z-score is _____ P-value__________ (hint give the percentage). C. What percent of men in this age group are shorter than 69 inches? Z-score is...
An extensive survey reveals that the heights of men in a certain country are normally distributed, with mean h bar = 69 in. and standard deviation sigma_h = 2 in. In a random sample of 1, 000 men, A. how many would you expect to have a height between 67 in. and 71 in. B. how many would you expect to have a height more than 71 in. C. how many would you expect to have a height more than...
Assume that the heights of men are normally distributed with a mean of 69.4 inches and a standard deviation of 1.3 inches. If the top 5 percent and bottom 5 percent are excluded for an experiment, how many inches tall is the tallest man allowed to be eligible for this experiment? Round your answer to one decimal place.
The heights of adult men in America are normally distributed, with a mean of 69.4 inches and a standard deviation of 2.64 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.6 inches and a standard deviation of 2.59 inches. a) If a man is 6 feet 3 inches tall, what is his z-score (to 4 decimal places)? 2= b) If a woman is 5 feet 11 inches tall, what is her...