You want to prepare a 90% confidence interval for the life of a butterfly of a particular type. You took a random sample of 25 such butterflies. The mean life for this sample is 47 days with a standard deviation of 3 days. (I) Prepare a 90% confidence interval of the life of a butterfly. (7) (ii) Would 95% confidence interval be wider than a 90% confidence interval? Explain. (3)

You want to prepare a 90% confidence interval for the life of a butterfly of a particular type. You took a random sample of 25 such butterflies. The mean life for this sample is 47 days with a standard deviation of 3 days. (I) Prepare a 90% confidence interval of the life of a butterfly. (7) (ii) Would 95% confidence interval be wider than a 90% confidence interval? Explain. (3)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

How would you solve this?
How do I find the adjusted confidence level for NORM.S.IN() in excel? What will the adjusted confidence level be for 95% for example. Thx.
## In a survey of adults with diabetes, the average body mass index (BMI) in a sample of 1938 women was 32.2 with a standard deviation of 0.03. The BMI in a sample of 1555 men was 30.4, with a standard deviation of 0.06. Construct a 92% confidence interval for the difference in the mean BMI between women and men with diabetes, INTERPRET THE RESULTS. DOES THE CONFIDENCE INTERVAL CONTRADICT THE CLAIM THAT THE MEAN BMI IS THE SAME FOR BOTH MEN AND WOMEN WITH DIABETES?
Prob & Stats Unable to solve 90% confidence interval of the differences in the nurses.
Please help with 1 a,b,c,d,e, and f.
Solve Question 2 Please show work
One year, the mean age of an inmate on death row was 38.1 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 36.9, with a standard deviation of 9.8. Construct a 95% confidence interval about the mean age. What does the interval imply? A Click the icon to view the table of critical t-values. Choose the correct hypotheses. Но (Type integers or decimals. Do not round.)
ANSWER PART B ONLY
Overweight Men For a random sample of 70 overweight men, the mean of the number of pounds that they were overweight was 29. The standard deviation of the population is 4.3 pounds. Find the 90% confidence interval of the mean of these pounds. Round intermediate answers to at least three decimal places.
A recent study of 25 randomly selected employees of a company showed that the mean of the distance they traveled to work was 14.09 miles. The standard deviation of the sample mean was 2.28 miles. Find the upper bound 95% confidence interval of the true mean. Round your answer to 3 decimal places.