What happen to confidence interval f sample size incresed

Assignment Help Basic Statistics

Reference no: EM13137416

A random sample of 25 observations was taken from a normally distributed population. The average in the sample was 84.6 with a variance of 400.

A) Construct a 90% confidence interval for mu.
B) Construct a 95% confidence interval for mu.
C) Discuss why the 90% and 99% confidence intervals are different.
D) What would you expect to happen to the confidence interval in part A if the sample size was increased?

Reference no: EM13137416

Questions Cloud

Determine whether the company should accept special order : The company presently is selling 12,000 units annually at a selling price of $28 each. A special order has been received from a distributor who wants to purchase 3,000 units at a special price of $20 each.

Account paid-in capital in excess of par : In applying the book value method, what amount should Morgan credit to the account "paid-in capital in excess of par," as a result of this conversion?

Find the minimal length of time the body stay in world : What is the minimal length of time the body should stay in the mold if the manufacturer wants to be 85% sure that the bonds have hardened?

Mr. branson lim : GenXY Motors Pte Ltd sells second hand cars. The company has four shops in different locations either within or outside of the city area.

What happen to confidence interval f sample size incresed : Discuss why the 90% and 99% confidence intervals are different. What would you expect to happen to the confidence interval in part A if the sample size was increased?

Explain carbon content of steel : Carbon content of steel, A steel contains 55% alpha-ferrite and 45% gamma-ferrite or austenite at 750 degrees celcius. What is the carbon content of steel?

What is the current minimum wage in the u.s : What is the current minimum wage in the U.S - what is the minimum wage for workers who receive tips and what is the current minimum wage for the state that you live in

What the term" popularization of religion" means : what the term" Popularization of religion" means

Explain the maximum flow past a circular cylinder : The maximum flow past a circular cylinder is 2 X the Up stream velocity. The max velocity occurs at the center line of the top of the cylinder.

User Account

All Pages