(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches Use what you know about a normal distribution and the...
(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches. Use what you know about a normal distribution and the 68-95-99.7 rule to answer the following. NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10 inches, enter 10 INCHES" (without the quotes and with a space between the number...
HW5 Continuous and Normal Random Variables Part1: Probler Previous Problem Problem List Next Problem (1 point) The distribution of heights of adult men in the U.S is approximately normal with mean 69 inches and standard deviation 2 5 inches, Use what you know about a normal distribution and the Empirical (le 68-95-99.7) rule to answer the following NOTE: If your answer is a percent, such as 25 percent, enter "25 PERCENT (without the quotes). If your answer is in inches,...
1. The distribution of heights of adult men is Normal, with a mean of 69 inches and a standard deviation of 2 inches. Gary’s height has a z-score of 0.5 when compared to all adult men. Interpret what this z-score tells about how Gary’s height. A. Gary is one standard deviation above the mean. B. 68% of adult men are shorter than Gary. C. Gary is 70 inches tall. D. All of the above are correct answers. 2. The mean...
The distribution of heights of adult American women is approximately normal with mean of 64 inches and standard deviation of 2 inches. What percent of women is shorter than 61 inches? a) 0.075 b) 0.067 c) 0.053 d) 0.082
6. The heights of men selected from a particular population have a normal distribution with mean 68 inches and standard deviation 4 inches. a. Find the percentage of men in the population who are taller than 72 inches. b. . Find the percentage of men who are between 64 and 74 inches tall C. Suppose 25% of men in this population are taller than Ralph. How tall is Ralph?
The distribution of heights of adult American women is approximately normal with a mean of 64 inches and standard deviation of 2 inches. What percent of women is taller than 68 inches? a) 0.0014 b) 0.025 c) 0.01 d) 0.05
The distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4 inches. A random sample of 36 adult males is selected. Describe the sampling distribution. a. Since the sample size is greater than 30, the sampling distribution is approximately normal with a sample mean of 69 inches and a sample standard deviation of 9 inches. b. Since the sample size is greater than 30, the sampling distribution is approximately normal with a...
The mean height of men is 69.7 inches. Assume that the heights of men are normally distributed, with a standard deviation of 2.9 in. a. [2 pts] 10% of men are taller than which height? Round your answer to 1 decimal place. b. [2 pts] Find the percentage of men that are 6'0" or taller. Round your final answer to 2 decimal places. c. [1 pts]How does the approximate percentage for the height of men 6'0" or taller (from the...
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.)
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches and standard deviation 4 inches. (a) What is the probability that an 18-year-old man selected at random is between 68 and 70 inches tall? (Round your answer to four decimal places.) (b) If a random sample of nineteen 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.) (c) Compare...