Find the critical value z, necessary to form a confidence interval at the level of confidence shown below. ge c = 0.83 (Round to two decimal Pjaces as needed.)

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 95​%, σ is not​ known, and the histogram of 61 player salaries​ (in thousands of​ dollars) of football players on a team is as shown.                           040008000120001600020000010203040Salary (thousands of dollars)Frequency         A histogram has a horizontal axis labeled "Salary (thousands of dollars)" from below 0 to above 20000 in increments of 2000 and a vertical axis labeled "Frequency" from 0 to 40 in increments of 10. The histogram contains vertical bars of width 2000, where one vertical bar is centered over each of the horizontal axis tick marks. The heights of the vertical bars are as follows, where the salary is listed first and the height is listed second: 0, 34; 2000, 16; 4000,…

Find the critical value zc necessary to form a confidence interval at the level of confidence shown below.   c=0.96

A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school

Find the critical value zc necessary to form a confidence interval at the level of confidence shown below.   c=0.92 zc=

Construct the indicated confidence interval for the population mean μ using the​ t-distribution. Assume the population is normally distributed.   c=0.99​, x=13.1​, s=0.51​, n=12 , ​(Round to one decimal place as​ needed.)

what is The confidence interval ? Interpret the interval.

Find the critical value zc necessary to form a confidence interval at the level of confidence shown below.   c=0.95