I got all the answers correct except for the one highlighted in red. What is the correct answer for the one in red.
I got all the answers correct except for the one highlighted in red. What is the...
1) (8 points) Identify the critical t. An
independent random sample is selected from an approximately normal
population with unknown standard deviation. Find the degrees of
freedom and the critical t value ?∗t∗ for the given sample size and
confidence level. Round critical t values to 4 decimal places.
(8 points) Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value...
(8 points) Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value t* for the given sample size and confidence level. Round critical t values to 4 decimal places. Sample size, n Confidence level Critical value, t* Degree of Freedom 12 90 28 95 4. 98 3 99
Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value t∗t∗ for the given sample size and confidence level. Round critical t values to 4 decimal places. Sample size, n Confidence level Degree of Freedom Critical value, t∗t∗ 22 90 11 95 3 98 20 99
Explain how to find the critical value, T* with a
graphing TI-84 calculator. round critical t-Values to 4 decimal
places
(8 points) Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value t* for the given sample size and confidence level. Round critical t values to 4 decimal places. Critical value, t* Sample size, n Confidence level 19 9 0 24...
(8 points) Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value t* for the given sample size and confidence level. Round critical t values to 4 decimal places. Sample size, n Confidence level Degree of Freedom Critical value, t* -1.4398 7 906 5 95 -2.1318 -2.2137 19 98 18 3992 99 -6.9646 Help Entering Answers Preview My Answers Submit Answers
7.1: Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical value t* when n 18 and the confidence level is 96% (please round to at least four places). - Degrees of freedom: Critical value:
Question 6 of 17 > Attempt 4 Suppose a researcher wishes to construct a 95% t-confidence interval for the difference of two independent means with unknown population standard deviations. His sample sizes are ni = 8 and n2 = 9, and his calculated Satterthwaite approximate degrees of freedom are 9.913. What is the positive t-critical value for this confidence interval, rounded to 3 decimal places? 1 = 2.228 Incorrect
1. A personnel officer found that the mean score of the company's overseas branches on a stress inventory was 44.6 with a standard deviation of 10 based on a random sample of 400 observations taken from the population. There is a 0.99 probability that the sample mean will provide a margin of error of (using a t-value) Select one: a. None of the other answers are correct b. .98 or less c. 4 or more d. 13.16 or less e....
A survey of 25 randomly selected customers found that their average age was 31.84 years with a standard deviation of 9.84 years. What would the critical value t* be for a 95% confidence interval with 99 degrees of freedom? What would the margin of error be for a 95% confidence interval for this data (with the sample size of 25)? Construct a 95% confidence interval for the mean age of all customers for this data (with the sample size of...
A researcher conjectures that cities in the more populous states of the United States tend to have higher costs for hospital rooms. Using “city data” that accompany this text, select a random sample of ten cities from the six most populous states (California, Texas, New York, Florida, Pennsylvania and Illinois). Then take a random sample of ten cities from the remaining states in the data set. For each of the twenty cities, record the average daily cost of a private...