Question

The average height of adult American men is 69" with a standard deviation of 3". If...

The average height of adult American men is 69" with a standard deviation of 3". If samples of 50 men are taken:

a. What is the mu of the x bars?

b. What is the sigma of the x bars?

c. What is the probability that the next x bar is less than 68 inches?

d. What is the height below which you will find 75% of the x bars?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The distribution of heights of adult men is approximately normal with mean 69 inches and standard...
The distribution of heights of adult men is approximately normal with mean 69 inches and standard deviation of 2.5 inches.   a. What percent of men are shorter than 66 inches? b. The distribution of heights of adult men is approximately normal with mean 69 inches and standard deviation of 2.5 inches. What is the probability that a man is taller than 74 inches? c.. What is the probability that a man is between 70 and 72 inches tall?
The average height of an adult American woman is 64 inches. Assume that σ= 3.1 inches....
The average height of an adult American woman is 64 inches. Assume that σ= 3.1 inches. A sample of 39 adult American women was taken. What is the probability that the x¯ was less than 65 inches for this sample? A. Can’t work this; normality of x¯ not satisfied B. 0.6265 C. 0.9780 D. 0.0220 The number of eggs that a female house fly lays during her lifetime is normally distributed with mean 840 and standard deviation 96. Random samples...
The mean height of adult men is about 175 centimeters (cm) with standard deviation 7 cm....
The mean height of adult men is about 175 centimeters (cm) with standard deviation 7 cm. The mean height of adult women is about 160 cm with standard deviation 6 cm. If a man and a woman are both 166.5 cm tall, which person’s height is more rare with respect to other people of the same sex? How do you know? 8. Public health statistics indicate that 26% of adults in the US smoke cigarettes. (a) Sketch the sampling distribution...
An airliner carrier 400 passengers and has doors 75 inches height of men are normally distributed...
An airliner carrier 400 passengers and has doors 75 inches height of men are normally distributed with a mean of 69 and a standard deviation of 2.8 is half of the 400 passengers are men find the probability that the mean height of 200 man is less than 75 inches?
A large study of the heights of 920 adult men found that the mean height was...
A large study of the heights of 920 adult men found that the mean height was 71 inches tall. The standard deviation was 7 inches. If the distribution of data was normal, what is the probability that a randomly selected male from the study was between 64 and 92 inches tall? Use the 68-95-99.7 rule (sometimes called the Empirical rule or the Standard Deviation rule). For example, enter 0.68, NOT 68 or 68%.
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches and standard...
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches and standard deviation 6 inches. (b) If a random sample of twenty-seven 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.)
Heights of men follow a normal distribution with an average of 69" and a standard deviation...
Heights of men follow a normal distribution with an average of 69" and a standard deviation of 2.8" (Iím rounding to make the arithmetic easier). 1. This indicates that the central 68% of men are from to tall. 2.  What percentage of men are between 69" and 71.8" tall?
According to the internet, the average (mean) height of adult men in the U.S. is 69.3...
According to the internet, the average (mean) height of adult men in the U.S. is 69.3 inches tall (about 5 foot, 9 inches tall). That seems wrong to me, and so I decide to test whether or not that is true by measuring the heights of a random sample of 63 adult men. I find that my sample of 63 women has a mean height of 71.2 inches, and a standard deviation of 1.2 inches. Answer the following questions in...
According to the internet, the average (mean) height of adult men in the U.S. is 69.3...
According to the internet, the average (mean) height of adult men in the U.S. is 69.3 inches tall (about 5 foot, 9 inches tall). That seems wrong to me, and so I decided to test whether or not that is true by measuring the heights of a random sample of 63 adult men. I find that my sample of 63 women has a mean height of 71.2 inches and a standard deviation of 1.2 inches. Answer the following questions in...
rhe average height of men in the united states is 70inch with a standard deviation of...
rhe average height of men in the united states is 70inch with a standard deviation of 4 inches. what proportion of men are 67 inches or taller? A) .7500 B) .2500 C) .7734 D) .2266
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT