Question

he distribution of male weight in the United States has a standard deviation of roughly s...

he distribution of male weight in the United States has a standard deviation of roughly s =

25 lbs. The average weight μ varies from state to state. Suppose you randomly select 100 males

In Texas and ask their weights, and you compute the average weight ?# 2222 of the n = 100 males.

a) Assuming that the standard deviation of weight in Texas is 25 lbs, what does the Central

Limit Theorem tell you the (approximate) distribution of ?# 2222 will be?

b) Use your answer to (a) to calculate the probability that ?# 2222 is within 5 pounds of the true

average weight μ for Texas.

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

Homework Answers

Answer #1

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
Suppose that average male weight in the US is 175 pounds with a standard deviation of...
Suppose that average male weight in the US is 175 pounds with a standard deviation of 25 pounds. Suppose you randomly select 1,000 male Americans and ask their weight, and average the 1,000 numbers to compute a sample mean x̄n . a) What does the law of large numbers tell you about x̄n , the average of the 1,000? Be precise in your answer using about 1 to 3 sentences. b) What is the variance of x̄n ? c) Use...
The mean of the distribution of truck weights is 20,000 lbs with a standard deviation of...
The mean of the distribution of truck weights is 20,000 lbs with a standard deviation of 2,000 lbs. Assume that the distribution approximates a Bell curve. Suppose you pick a single truck at random. What is the probability that the weight will be between 21,000 and 22,000 miles? Use area from a value. (Show a screen shot for your answer.) Use the central limit theorem to the following questions. Suppose you pick a group of 16 trucks instead. What would...
Wildlife conservationist studying grizzly bears in the United States found that the mean weight of 25...
Wildlife conservationist studying grizzly bears in the United States found that the mean weight of 25 adult males was 600 pounds with a standard deviation of 90 pounds. construct and interpret a 98% confidence interval for the mean weight of all adult male grizzly bears in the United States. Assume that the weights of all adukt male grizzly bears in the United States are normally distributed. Round to 3 decimal places.
Baby weights: The weight of male babies less than 2 months old in the United States...
Baby weights: The weight of male babies less than 2 months old in the United States is normally distributed with mean 12 pounds and standard deviation 3.7 pounds. Use the Cumulative Normal Distribution Table to answer the following. (a) Find the 84th percentile of the baby weights. (b) Find the 13th percentile of the baby weights. (c) Find the first quartile of the baby weights.
baby weights: the weight of male babies less than 2 months old in the United States...
baby weights: the weight of male babies less than 2 months old in the United States is normally distributed with mean 11.5 pounds and a standard deviation of 2.5 pounds. what portion of the babies weigh between 9 and 14 pounds?
The average weight of adult males is 184.5 pounds, with a standard deviation of 19 pounds...
The average weight of adult males is 184.5 pounds, with a standard deviation of 19 pounds and a normal distribution. Micah weighs 203.4 pounds. What is the standardized score for Micah's weight?
The population has mean μ=29 and standard deviation σ=9. This distribution is shown with the black...
The population has mean μ=29 and standard deviation σ=9. This distribution is shown with the black dotted line. We are asked for the mean and standard deviation of the sampling distribution for a sample of size 34. The Central Limit Theorem states that the sample mean of a sample of size n is normally distributed with mean μx¯=μ and σx¯=σn√. In our case, we have μ=29, σ=9, and n=34. So, μx¯=29 and σx¯=934‾‾‾√=1.5 This distribution is shown with the red...
The population of quarters have a mean weight of 5.670 g and a standard deviation of...
The population of quarters have a mean weight of 5.670 g and a standard deviation of 0.062 g. The distribution of the weights is normal. What is the probability that a randomly selected quarter has a weight less than 5.600 g? What is the probability that 25 randomly selected quarters have a mean weight less than 5.600 g? The weight of full term babies is normally distributed with a mean of 7 pounds with a standard deviation of 0.6 pounds....
2. A random sample of 25 male runners has a mean of ̄x= 60 and standard...
2. A random sample of 25 male runners has a mean of ̄x= 60 and standard deviation s = 3 kilograms(kg). Suppose that the mean weights of male runners follow a normal distribution with unknown mean μ and unknown standard deviation σkg. Find a 90% confidence interval for μ. (10 pts.)
As a baker you know from experience that the standard deviation of the weight of 10lbs...
As a baker you know from experience that the standard deviation of the weight of 10lbs packages of cookies is 0.20 lbs. To check whether the true average is, on a given day, 10 pounds, you select a random sample of 36 packages and find that their mean weight is 9.45 lbs. Perform a two-tailed z-test on this data, checking at the alpha= .01 significance level.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT