Question

9.2.13 A random sample of 35 SEC Division I football defensive lineman have an average weight...


9.2.13 A random sample of 35 SEC Division I football defensive lineman have an average weight of 359.133 pounds with a standard deviation of 33.436 pounds. A random sample of 32 Big 12 Division I defensive lineman have an average weight of 357.467 pounds with a standard deviation of 33.084 pounds.

a. Construct a 90% confidence interval for the difference between the average weight of a football defensive lineman in the SEC versus the Big 12.
b. Are Division I football defensive lineman bigger in the SEC than in the Big 12? Use a significance level of 0.10.

Show all 5 steps.

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
This is for option 1. I wanted to know if the average weight of Stanford’s starting...
This is for option 1. I wanted to know if the average weight of Stanford’s starting offensive line is the same as the average weight of my favorite professional football team the Los Angeles Raiders. My hypothesis is the Raiders average would be higher since they are a professional team. Stanford’s linemen weigh 305, 325, 300,319, and 295. Los Angeles lineman weighs 315, 315, 295, 305, and 310. Assume a random sample was drawn.
To determine the average weight of carry-on luggage by passengers in airplanes, a sample of 35...
To determine the average weight of carry-on luggage by passengers in airplanes, a sample of 35 pieces of carry-on luggage was weighed. The average weight was 17 pounds. Assume that we know the standard deviation of the population to be 9 pounds. Determine a 97% confidence interval estimate for the mean weight of the carry-on luggage. Provide the lower limit of the confidence interval.(Round to four decimal places)
4. A random sample of 24 direwolves found an average weight of 520 pounds with a...
4. A random sample of 24 direwolves found an average weight of 520 pounds with a standard deviation of 48 pounds. The weights of all direwolves follow a normal distribution. (a) Is there evidence at the α = 0.025 significance level to conclude the mean weight of all direwolves is more than 500 pounds? (b) Interpret the P-value in the context of this test. (c) Explain what a Type I error would mean in the context of this test. (d)...
1. The mean weight of all 21-year-old women 132 pounds. A random sample of 35 vegetarian...
1. The mean weight of all 21-year-old women 132 pounds. A random sample of 35 vegetarian women who are 21 years old showed a sample mean of 127 pounds with a standard deviation of 15 pounds. The women's measurements were independent of each other. Determine whether the mean weight for 21-year old vegetarian women is significantly less than 132, using a significance level of 5%
Assume that the average weight of an NFL player is 245.7 pounds with a standard deviation...
Assume that the average weight of an NFL player is 245.7 pounds with a standard deviation of 34.5 pounds, but the probability distribution is unknown. a. if a random sample of 32 NFL players is selected, what is the probabilty that the average weight of the sample sill be less than 234 pounds? b. If a random sample of 32 NFL players is selected, what is the probability that the average weight of the sample is between 248 and 254...
5. A sample of 120 body builders have an average weight of of 278.20 pounds and...
5. A sample of 120 body builders have an average weight of of 278.20 pounds and a sample standard deviation of 12.62 pounds. Construct a 99% confidence interval estimate the mean of the weight of bodybuilders for the entire population. a) Find the margin of error, E b) What is the Confidence Interval? c) Interpret the confidence interval.
The trout in a lake have historically had an average weight of 11.2 pounds. It is...
The trout in a lake have historically had an average weight of 11.2 pounds. It is suspected that pollution from a nearby factory has affected the weight of trout in recent years. Suppose you take a random sample of 50 trout from the lake, and you find that the sample mean of their weight is 10.2 pounds, with a sample standard deviation of 2.1 pounds. (a) The standard error of the (sample) mean is ­­­­­___________________________ (b) Find a 95% confidence...
Does an average pack of banana bread cookies weighs 40 grams? A random sample of 35...
Does an average pack of banana bread cookies weighs 40 grams? A random sample of 35 boxes showed a mean of 41.95 grams. The company has specified the population standard deviation to be 5 grams. Test at the 0.10 level of significance. *
Does an average pack of banana bread cookies weighs 40 grams? A random sample of 35...
Does an average pack of banana bread cookies weighs 40 grams? A random sample of 35 boxes showed a mean of 41.95 grams. The company has specified the population standard deviation to be 5 grams. Test at the 0.10 level of significance. *
A random sample of 32 baseball players and a random sample of 27 soccer player were...
A random sample of 32 baseball players and a random sample of 27 soccer player were obtained and each player was weighed in pounds. The mean weight of the baseball players is 186 pounds with a standard deviation of 10.1 pounds. The mean weight of the soccer players is 168 pounds with a standard deviation of 3.0 pounds. Use a significance level of .05 to test the claim that the mean weight of baseball players is the same as the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Consider insertsort. Suppose that the input array A has 1% probability to be monotonically decreasing. Show...
    asked 3 minutes ago
  • Your company is thinking of introducing a Bring Your Own Device (BYOD) policy. You have been...
    asked 10 minutes ago
  • Attached is the file GeometricObject.java. Include this in your project, but do not change. Create a...
    asked 12 minutes ago
  • Suppose the number of cars in a household has a binomial distribution with parameters n =...
    asked 15 minutes ago
  • HR needs some information on the new interns put into a database. Given an id, email,...
    asked 36 minutes ago
  • Problem solving strategies Questions years = input("Enter a number of years and I'll tell you how...
    asked 40 minutes ago
  • Calculate ?Hrxn for the following reaction: CH4(g)+4Cl2(g)?CCl4(g)+4HCl(g) Use the following reactions and given ?H?s. C(s)+2H2(g)?CH4(g)?H=?74.6kJC(s)+2Cl2(g)?CCl4(g)?H=?95.7kJH2(g)+Cl2(g)?2HCl(g)?H=?184.6kJ Express...
    asked 47 minutes ago
  • ASCII (American Standard Code for Information Interchange) has an encoding for every character of the alphabet,...
    asked 1 hour ago
  • Is home confinement with electronic monitoring a deterrent? Are there negatives to being confined to one’s...
    asked 1 hour ago
  • Social hostility can have severe lasting effects of interperpersonal relationship during our adolescence years, which if...
    asked 1 hour ago
  • - A series RLC circuit has R=15 ?, L=1.5 H, and C=15 ?F. (a) For what...
    asked 1 hour ago
  • TV Circuit has 30 large-screen televisions in a warehouse in Erie and 60 large-screen televisions in...
    asked 1 hour ago