Find the critical value z, necessary to form a confidence interval at the level of confidence...
Find the critical value Zc necessary to form a confidence interval at the level of confidence shown below. c = 0.83 Zc = _______ (Round to two decimal places as needed.)
Find the critical value z Subscript czc necessary to form a confidence interval at the level of confidence shown below. cequals=0.87
Find the critical value z Subscript c necessary to form a confidence interval at the level of confidence shown below. c=0.82
Find the critical value z/α2 needed to construct a confidence interval with level 99.7% .Round the answer to two decimal places. The critical value for the 99.7%confidence level is __?
Find the critical value za/2 needed to construct a confidence interval with level 95%. Round the answer to two decimal places. The critical value for the 95% confidence level is _______ .
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value tα/2, (b) find the critical value zα/2, or (c) state that neither the normal distribution nor the t distribution applies.The confidence level is 90%, σ=3347 thousand dollars, and the histogram of 56 player salaries (in thousands of dollars) of football players on a team is as shown.Select the correct choice below and, if necessary, fill in the answer box to...
Answers only is fine! Find the critical value zc necessary to form a confidence interval at the level of confidence shown below. c=0.92 Find the margin of error for the given values of c, σ, and n. c = 0.95, σ =2.4, n = 8.1 Level of Confidence. zc 90% 1.645 95% 1.96 99% 2.575 Construct the confidence interval for the population mean μ. c=0.98, x=9.5, σ=0.3, and n= 52 Construct the confidence interval for the population mean μ. c=0.95, x=16.7, σ=6.0, and n=...
1A) Find the level of confidence assigned to an interval estimate of the mean formed using the following intervals. (Round your answers to four decimal places.) (a) x − 0.99·σ x to x + 0.99·σ x (b) x − 1.69·σ x to x + 1.69·σ x (c) x − 2.22·σ x to x + 2.22·σ x (d) x − 2.66·σ x to x + 2.66·σ x 1B) A sample of 28 of 174 funded projects revealed that 13 were valued...
Find the critical value(s) and rejection region(s) for the type of z-test with level of significance a. Include a graph with your answer. Two-tailed test, α = 0.04 The critical value(s) is/are z Round to two decimal places as needed. Use a comma to separate answers as needed.) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Round to two decimal places as needed.) A. The rejection regions are z< and z>...
ol. Find the critical value a/2 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 98% and sample size 8 Critical value = х Part 2 of 4 (b) For level 99% and sample size 13 Critical value = Part 3 of 4 (c) For level 99.5% and sample size 28 Critical value = Part 4 of 4 (d) For...