What is the critical value t* for a 99% confidence interval when n = 20?

Expert Solution

Solution:
Given in the question
No. of sample = 20
Degree of freedom = No. of sample - 1 = 20-1 = 19
For 99% confidence interval, alpha = 0.01, alpha/2 = 0.005
So Critical value of t from t table at df = 19 and alpha/2=0.005
So t critical value = 2.861

orchestra answered 1 year ago

a) The critical value of t for a 99% confidence interval with df equals=88. b) The...

a) The critical value of t for a 99% confidence interval with df equals=88. b) The critical value of t for a 90% confidence interval with df equals=107.

Part 1. For a 95% confidence interval for u when df = 19, the t-critical value...

Part 1. For a 95% confidence interval for u when df = 19, the t-critical value is _______ Part 2: For a 90% confidence interval for u when df = 19, the t-critical value is _______ Part 3: For a 99% confidence interval for u when df = 19, the t-critical value is _______ Part 4: For a 95% confidence interval for u when df = 42, the t-critical value is _______ Part 5: For a 99% confidence interval for...

1) The t-value that you would use to construct a 99% confidence interval for means with a sample of size n = 17.

1) The t-value that you would use to construct a 99% confidence interval for means with a sample of size n = 17. t valué?=

If n=20, ¯ x (x-bar)=36, and s=13, construct a confidence interval at a 99% confidence level....

If n=20, ¯ x (x-bar)=36, and s=13, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

The question is: Find the critical t-value that corresponds to 99% confidence. Assume 23 degrees of...

The question is: Find the critical t-value that corresponds to 99% confidence. Assume 23 degrees of freedom (round to 3 decimal places as needed).

What critical value t* from Table C would you use for a confidence interval for the...

What critical value t* from Table C would you use for a confidence interval for the mean of the population in each of the following situations? A 80 % confidence interval based on n = 20 observations

What critical value t* from Table C would you use for a confidence interval for the...

What critical value t* from Table C would you use for a confidence interval for the mean of the population in each of the following situations? (Use 3 decimal places.) (a) A 95% confidence interval based on n = 15 observations. t* = (b) A 99% confidence interval from an SRS of 29 observations. t* = (c) A 80% confidence interval from a sample of size 9. t* =

Question

What is the critical value t* for a 99% confidence interval when n = 20?

Solutions

Expert Solution

Related Solutions

a) The critical value of t for a 99% confidence interval with df equals=88. b) The...

Part 1. For a 95% confidence interval for u when df = 19, the t-critical value...

1) The t-value that you would use to construct a 99% confidence interval for means with a sample of size n = 17.

If n=20, ¯ x (x-bar)=36, and s=13, construct a confidence interval at a 99% confidence level....

The question is: Find the critical t-value that corresponds to 99% confidence. Assume 23 degrees of...

What critical value t* from Table C would you use for a confidence interval for the...

What critical value t* from Table C would you use for a confidence interval for the...

Find the critical value t* for the following situations. a) a 95% confidence interval based on...

If the critical t-value for a confidence interval calculation was 2.756, how big was the sample?

Calculate a 99% confidence interval for population proportion when the population proportion is 0.826 and n=92....