Question

Weights of men are normally distributed with a mean of 189 lb and a standard deviation...

Weights of men are normally distributed with a mean of 189 lb and a standard deviation of 39 lb. If 20 men are randomly selected, find the probability that they have weights with a mean between 200 lb and 230 lb.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Refer Standard normal table/Z-table to find the probability OR use excel formula "=NORM.S.DIST(4.7015, TRUE)" & "=NORM.S.DIST(1.2614, TRUE)" to find the probability.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Assume that the population of weights of men is normally distributed with mean 172 lb and...
Assume that the population of weights of men is normally distributed with mean 172 lb and standard deviation 29 lb. a. If an individual man is randomly selected, find the probability that his weight will be greater than 175 lb. (Round to four decimal places as needed.) b. Find the probability that 20 randomly selected men will have a mean weight that is greater than 175 lb. (Round to four decimal places as needed.) show work
Assume that the population of weights of men is normally distributed with mean 172 lb and...
Assume that the population of weights of men is normally distributed with mean 172 lb and standard deviation 29 lb. a. If an individual man is randomly selected, find the probability that his weight will be greater than 175 lb. (Round to four decimal places as needed.) b. Find the probability that 20 randomly selected men will have a mean weight that is greater than 175 lb. (Round to four decimal places as needed.) Please show all work as if...
Assume that women's weights are normally distributed with a mean given by ?=143μ=143 lb and a...
Assume that women's weights are normally distributed with a mean given by ?=143μ=143 lb and a standard deviation given by ?=29σ=29 lb. (a)  If 1 woman is randomly selected, find the probabity that her weight is between 113113 lb and 172172 lb (b)  If 44 women are randomly selected, find the probability that they have a mean weight between 113113 lb and 172172 lb (c)  If 5151 women are randomly selected, find the probability that they have a mean weight between 113113 lb...
Assume that women's weights are normally distributed with a mean given by ?=143 lb and a...
Assume that women's weights are normally distributed with a mean given by ?=143 lb and a standard deviation given by ?=29 lb. (a) If 1 woman is randomly selected, find the probabity that her weight is between 113 lb and 173 lb (b) If 5 women are randomly selected, find the probability that they have a mean weight between 113 lb and 173 lb (c) If 82 women are randomly selected, find the probability that they have a mean weight...
The weights of the fish in a certain lake are normally distributed with a mean of...
The weights of the fish in a certain lake are normally distributed with a mean of 20 lb and a standard deviation of 9. If 9 fish are randomly selected, what is the probability that the mean weight will be between 17.6 and 23.6 lb?
Birth weights in the USA are normally distributed with mean of 3420 g and standard deviation...
Birth weights in the USA are normally distributed with mean of 3420 g and standard deviation of 495g. Find the probability that a randomly selected baby weight is between 2450g and 4390g.
Average height of men is normally distributed with mean height of 160 cm and standard deviation...
Average height of men is normally distributed with mean height of 160 cm and standard deviation of 5 cm. If a sample of 9 men are randomly selected from this population, find the probability that the mean is between 155 cm and 160 cm. Question 20 options: 0.3412 0.50 0.0013 0.4987 0.5821
The weights of steers in a herd are distributed normally. The standard deviation is 200 lbs...
The weights of steers in a herd are distributed normally. The standard deviation is 200 lbs and the mean steer weight is 1000 lbs. Find the probability that the weight of a randomly selected steer is between 1160 and 1260 lbs. Round your answer to four decimal places.
1. The weights of a certain brand of candies are normally distributed with a mean weight...
1. The weights of a certain brand of candies are normally distributed with a mean weight of 0.8542 g and a standard deviation of 0.0521 g. A sample of these candies came from a package containing 454 ​candies, and the package label stated that the net weight is 387.3 g.​ (If every package has 454 ​candies, the mean weight of the candies must exceed  387.3 Over 454= 0.8531 g for the net contents to weigh at least 387.3 ​g.) a. If...
A variable of a population has a mean of ?=150 and a standard deviation of ?=21....
A variable of a population has a mean of ?=150 and a standard deviation of ?=21. a. The sampling distribution of the sample mean for samples of size 49 is approximately normally distributed with mean __ and standard deviation __ A company sells sunscreen in 500 milliliters (ml) tubes. In fact, the amount of lotion in a tube varies according to a normal distribution with mean ?=497 ml and a standard deviation ?=5 ml. Suppose a store that sells this...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT