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4. Suppose the heights of American men are approximately normally distributed with mean of 68 and...
Question 25 5 pts Heights of adult American men are normally distributed with a mean of 69 inches and a standard deviation of 3 inches. Using the Empirical rule, approximately what percentage of men have heights below 63 inches? 68% O O O 95% 5% 2.5% Question 26 5 pts Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. Find the value of the quartile Q3. 66.1...
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.)
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches. (a) Find the percentage of 18 year old men with height between 67 and 69 inches. (b) Find the percentage of 18 year old men taller than 6 foot. (c) if a random sample of nine 18 year old men is selected, what is the probability that their mean height is between 68 and 72 inches? (d) if a random sample...
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 73 inches and standard deviation 6 inches. in USE SALT (a) What is the probability that an 18-year-old man selected at random is between 72 and 74 inches tall? (Round your answer to four decimal places.) 0.9928 X (b) If a random sample of twenty-nine 18-year-old men is selected, what is the probability that the mean height is between 72 and 74 inches? (Round your answer to four...
The heights of 18-year-old men are approximately normally distributed with mean 68 inches and standard deviation 3 inches. What is the probability that the height of an 18-year-old man selected at random is between 66 inches and 67 inches? a. 0.8807 b. 0.3807 c. 0.1193 d. 0.4283 e. 0.1333
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches and standard deviation 1 inch. If a random sample of thirty 18-year-old men is selected, what is the probability that the mean height x is between 68 and 70 inches? (Round your answer to four decimal places.)
The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is (65.3,73.7), what is the sample mean x¯? Give just a number for your answer. For example, if you found that the sample mean was 12, you would enter 12.
The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a standard deviation of 2.62 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.2 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)? (to 4 decimal places)? b. If a woman is 5 feet 11 inches tall,...
The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a standard deviation of 2.66 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.8 inches and a standard deviation of 2.51 inches. If a man is 6 feet 3 inches tall, what is his z-score (to 4 decimal places)? z = If a woman is 5 feet 11 inches tall, what is her z-score...
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...