Question

The U.S. Census Bureau reported that the average area of U.S. homes built in 2018 was...

The U.S. Census Bureau reported that the average area of U.S. homes built in 2018 was 2,623. square feet. A simple random sample of 38 homes, had an average of 2,715 square feet, with a standard deviation of 249 square feet. Assume the population is approximately normally distributed. Test the claim that the average square feet of homes built in 2019 is more than 2018 by conducting a hypothesis test at the .01 significant level?

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
The U.S. Census Bureau reported that the mean area of U.S. homes built in 2012 was...
The U.S. Census Bureau reported that the mean area of U.S. homes built in 2012 was 2505 square feet. A simple random sample of 19 homes built in 2013 had a mean area of 2738 square feet with a standard deviation of 280 feet. Can you conclude that the mean area of homes built in 2013 is greater than the mean area of homes built in 2012? It has been confirmed that home sizes follow a normal distribution. Use a...
The Bureau of Labor Statistics reported that the average yearly income of dentists in the year...
The Bureau of Labor Statistics reported that the average yearly income of dentists in the year 2018 was $110,000. Asample of 81 dentists, which was taken in 2019, showed an average yearly income of $120,000. Assume the standarddeviation of the population of dentists in 2019 is $36,000. We want to test to determine if there has been a significantdifference in the average yearly income of dentists. Following the steps for hypothesis testing, conduct this hypothesis test at the 5% level...
The Bureau of Labor Statistics reported that the average yearly income of dentists in the year...
The Bureau of Labor Statistics reported that the average yearly income of dentists in the year 2018 was $110,000. A sample of 81 dentists, which was taken in 2019, showed an average yearly income of $120,000. Assume the standard deviation of the population of dentists in 2019 is $36,000. We want to test to determine if there has been a significant difference in the average yearly income of dentists. Following the steps for hypothesis testing, conduct this hypothesis test at...
In a recent publication, it was reported that the average highway gas mileage of tested models...
In a recent publication, it was reported that the average highway gas mileage of tested models of a new car was 34.2 mpg with a standard deviation of 1.5 mpg, with the mileages approximately normally distributed. H0 : μ = 34.2 Ha : μ < 34.2 Part a: Describe a Type II error in the context of the hypothesis test. Part b: If a simple random sample of 100 cars is selected, what values of the sample mean ̄x would...
4. In a recent publication, it was reported that the average highway gas mileage of tested...
4. In a recent publication, it was reported that the average highway gas mileage of tested models of a new car was 33.2 mpg with a standard deviation of 2.5 mpg, with the mileages approximately normally distributed. H0 : µ = 33.2 Ha : µ < 33.2 Part a: Describe a Type II error in the context of the hypothesis test. Part b: If a simple random sample of 100 cars is selected, what values of the sample mean ¯x...
In a recent publication, it was reported that the average highway gas mileage of tested models...
In a recent publication, it was reported that the average highway gas mileage of tested models of a new car was 33.2 mpg and approximately normally distributed. A consumer group conducts its own tests on a simple random sample of 17 cars of this model and finds that the mean gas mileage for their vehicles is 31.5 mpg with a standard deviation of 3.5 mpg. Perform a test at the level to determine if these data support the contention that...
1 Over the past several years, the proportion of one-person households has been increasing. The Census...
1 Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test the hypothesis that the proportion of one-person households exceeds 0.27. A random sample of 125 households found that 43 consisted of one person. The Census Bureau would like to set α = 0.05. Use the critical value approach to test this hypothesis. Explain. 2 Organizations are relying more and more on social-networking sites to research job candidates. According to...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT