Question

Based on the records of the last 15 years, the average rainfall in the A region...

Based on the records of the last 15 years, the average rainfall in the A region was calculated as 13 cm and the standard deviation 4cm in February. In zone B, based on the last 10-year records, the average rainfall for the same month is calculated as 10 cm and the standard deviation is 2 cm. It is known that the amount of precipitation has a normal distribution. Accordingly, if we assume that the mass variances are equal, the claim that the average amount of precipitation falling on the A region is higher than the B region should be tested at the level of meaning α = 0.10;
a) establish the hypothesis
b) Calculate the test statistics.
c) Determine the critical value using the relevant table. Explain what your decision is and comment.

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

Homework Answers

Answer #1

ANSWER:

NOTE:: I HOPE THIS ANSWER IS HELPFULL TO YOU......**PLEASE SUPPORT ME WITH YOUR RATING......

**PLEASE GIVE ME "LIKE".....ITS VERY IMPORTANT  FOR,ME......PLEASE SUPPORT ME .......THANK YOU

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
Based on the records of the last 15 years, the average rainfall in the A region...
Based on the records of the last 15 years, the average rainfall in the A region was calculated as 13 cm and the standard deviation 4cm in February. In zone B, based on the last 10-year records, the average rainfall for the same month is calculated as 10 cm and the standard deviation is 2 cm. It is known that the amount of precipitation has a normal distribution. Accordingly, if we assume that the mass variances are equal, the claim...
The standard deviation of the annual precipitations of a region over a period of 100 years...
The standard deviation of the annual precipitations of a region over a period of 100 years was 16 cm. During the last 15 years a standard deviation of annual precipitations was computed as 10 cm. Test the hypothesis that the precipitations in the region have become less variable than in the past, using a significance level of (a) 0.05 and (b) 0.01. Use chi-square distribution. . .
n the last 20 years, the average return on stock is 9.27% and the standard deviation...
n the last 20 years, the average return on stock is 9.27% and the standard deviation is 18.32%. The average return on 10-year treasury note is 5.70% and the standard deviation is 8.82%. The correlation between stock and bond return is -0.5926. 1.What is the standard deviation of a 50% stock 50% bond portfolio? 2.Based on (1), In this period, the average risk-free rate is 2.14%. What is the Sharpe ratio of the 50% stock 50% bond portfolio?
The annual returns on the stock of a firm during the last four years are provided...
The annual returns on the stock of a firm during the last four years are provided below.                                     ___________________________________                                    Year Return                                     ___________________________________                                     2016               –0.10 (or –10%)                                     2017                0.10 (or 10%)                                     2018                0.15 (or 15%)                                     2019                0.25 (or 25%)                                     __________________________________ a) Find the holding period return of the stock over the four-year period. b) Compute the arithmetic average return of the stock over the four-year period. c) Calculate the geometric average return of the...
The annual returns on the stock of a firm during the last four years are provided...
The annual returns on the stock of a firm during the last four years are provided below.                                     ___________________________________                                    Year Return                                     ___________________________________                                     2016               –0.10 (or –10%)                                     2017                0.10 (or 10%)                                     2018                0.15 (or 15%)                                     2019                0.25 (or 25%)                                     __________________________________ a) Find the holding period return of the stock over the four-year period. b) Compute the arithmetic average return of the stock over the four-year period. c) Calculate the geometric average return of the...
A mutual fund has earned an annual average return of 15% over the last 5 years....
A mutual fund has earned an annual average return of 15% over the last 5 years. During that time, the average risk-free rate was 2% and the average market return was 12% per year. The correlation coefficient between the mutual fund’s and market’s returns was 0.7. The standard deviation of returns was 50% for the mutual fund and 22% for the market. What was the fund’s CAPM alpha? a) -2.9% b) -1.3% c) 0.3% d) 1.9% e) 3.5%
Weekly overtime hours by 15 randomly selected custodial staff at State College for the last week...
Weekly overtime hours by 15 randomly selected custodial staff at State College for the last week of August was: 15 20 21 23 25 28 30 36 37 37 40 45 50 73 Find: The average overtime hours worked for a custodial person. The median of the overtime hours worked. The standard deviation of the overtime hours worked. Based on the results of a and b comment on which measurement you feel would be most useful for measuring central tendency...
A company claims that its batteries last an average of 100 hours under normal use. There...
A company claims that its batteries last an average of 100 hours under normal use. There have been several complaints that the batteries don't last that long, so an independent testing agency is engaged to test them. The population standard deviation is known to be 10 hours. For the 25 batteries they tested, the mean lifetime was 96 hours. If the true population mean is 100 hours, you have made a Type I Error      Type II error   Correct decision        If...
We know that during the last 10 years, the average historical return on a market index...
We know that during the last 10 years, the average historical return on a market index is 12%. We also know that the average inflation rate and average risk-free rate over the last 10 years are 2% and 5%, respectively. What is the real risk premium using the exact Fisher equation? Select one: a. 2.94% b. 6.86% c. 7.00% d. 9.80% e. 10.00% Given the following share price history, calculate the standard deviation of the returns on this stock. Year...
Tanner loves to go hiking. He has gone on 40 hikes over the last two years,...
Tanner loves to go hiking. He has gone on 40 hikes over the last two years, with an average distance of 12.8 miles and a standard deviation of 1.4 miles. a) Based on the information provided, do you need to apply the Central Limit Theorem, and can you apply it? b) Construct a 95% confidence interval for the average distance of the hikes Tanner takes. c) Tanner’s wife claims he always goes on hikes that are too long. He asks...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT