Question

Using the T-Table, find the following values: a) For a 90% confidence interval with a sample...

Using the T-Table, find the following values:

a) For a 90% confidence interval with a sample size of 11, tc =

b) For a 95% confidence interval with a sample size of 20, tc=

c) For a 99% confidence interval with a sample size of 25, tc=

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
What critical value t* from the t-table would you use for a confidence interval for the...
What critical value t* from the t-table would you use for a confidence interval for the mean of the population in each of the following situations? NOTE: The critical value is just another name for the t* values we read off from the type of T Table you have in your notes. (Use 3 decimal places) (a) A 95% confidence interval based on 4 observations (b) A 99% confidence interval from an SRS of 9 observations (c) An 90% confidence...
you are calculating a confidence interval for the population mean. Find the critical value t* from...
you are calculating a confidence interval for the population mean. Find the critical value t* from the t-Distribution Critical Values table for each of the following situations A 95% confidence interval based on n = 12 observations. A 99% confidence interval from a sample of two observations. A 90% confidence interval from a sample of size 1001. 2. Suppose you conduct a hypothesis test for the following hypotheses from a sample of n = 25 observations, and you calculate a...
1) Find the critical value t (a/2) needed to construct a confidence interval of the given...
1) Find the critical value t (a/2) needed to construct a confidence interval of the given level with the given sample size. Round the answers to three decimal places a) 98% sample size 11 critical value- b) for level 95% and sample size 25 critical value- c)for level 99% and sample size 14 2) a sample of size n equals 45 has a sample mean X equals 56.9 and sample standard deviation s equals 9.4. construct a 99% confidence interval...
Find the critical value t/α2 needed to construct a confidence interval of the given level with...
Find the critical value t/α2 needed to construct a confidence interval of the given level with the given sample size. Round the answers to three decimal places. Part 1 of 4 (a) For level   99% and sample size   5 Part 2 of 4 (b) For level   90% and sample size   14 Part 3 of 4 (c) For level   99.5% and sample size   28 Part 4 of 4 (d) For level   95% and sample size   11
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 380, 460 ). Assume that this result is based on a sample of size 20 . 4) If the confidence interval (385.2962 ,454.7038) is obtained from the same sample data, what is the degree of confidence? 90% 95% 88% 85%
Find a confidence interval for μ assuming that each sample is from a normal population. (Round...
Find a confidence interval for μ assuming that each sample is from a normal population. (Round the value of t to 3 decimal places and your final answers to 2 decimal places.) (a) x⎯⎯ = 28, s = 5, n = 8, 90 percent confidence. The 90% confidence interval is to (b) x⎯⎯ = 50, s = 6, n = 15, 99 percent confidence. The 99% confidence interval is to (c) x⎯⎯ = 111, s = 11, n = 29,...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 370, 430 ). Assume that this result is based on a sample of size 25 . 1. What is the value of the sample mean? 2. What is the value of the sample standard deviation? 3. Construct the 99% confidence interval 4. If the confidence interval (373.9233 , 426.0767) is obtained from the same sample data, what is the degree...
Find a confidence interval for μ assuming that each sample is from a normal population. (Round...
Find a confidence interval for μ assuming that each sample is from a normal population. (Round the value of t to 3 decimal places and your final answers to 2 decimal places.) (a) 1formula63.mml = 22, s = 3, n = 6, 90 percent confidence. The 90% confidence interval is to (b) 1formula63.mml = 40, s = 4, n = 19, 99 percent confidence. The 99% confidence interval is to (c) 1formula63.mml = 123, s = 10, n = 20,...
The width of a confidence interval will be: Narrower for 98 percent confidence than for 90...
The width of a confidence interval will be: Narrower for 98 percent confidence than for 90 percent confidence. Wider for a sample size of 64 than for a sample size of 36. Wider for a 99 percent confidence than for 95 percent confidence. Narrower for a sample size of 25 than for a sample size of 36. None of these.
We use the t distribution to construct a confidence interval for the population mean when the...
We use the t distribution to construct a confidence interval for the population mean when the underlying population standard deviation is not known. Under the assumption that the population is normally distributed, find tα/2,df for the following scenarios. (You may find it useful to reference the t table. Round your answers to 3 decimal places.) tα/2,df a. A 95% confidence level and a sample of 10 observations. b. A 99% confidence level and a sample of 10 observations. c. A...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT