Find the values of the critical points z and t in the following (Remember that sample size is needed for the critical point t): (a) n = 23 and confidence level is 95%. (b) n = 17 and confidence level is 98%.

For a confidence level of 99% with a sample size of 26, find the critical t value.

A researcher is trying to estimate the population mean (μ) of anxiety based on his sample of n = 16 scores. His sample M = 58 and the s = 5.36. Construct the 95% confidence interval for μ.

The confidence level is 99% , o= 4178 thousand dollars, and the histogram of 59 player salaries of football players. Find the critical value za/2 and ta/2

How would i find:  the 90​% confidence interval is enter your response here <(p1−p2)< enter your response here.

Cesar wants to know what the expected weight of a loaf of bread for quality control purposes. Based on a sample of 14 loaves of bread, he finds a sample average of 400 grams with a sample standard deviation of 15 grams. What’s the confidence interval at 95%?  What is it at 99.9%? What would the confidence intervals (for 95% and 99.9%) be if the sample average was based on 140 loaves instead of 14? Include the upper and lower bounds for each of the four intervals and be sure to include what you put into Excel to determine your answer. Round your answers to two decimal places.

Please solve the a, b, c, and d.

A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 ​respondents, 14​% chose chocolate​ pie, and the margin of error was given as ±4 percentage points. What values do p​, q​, ​n, E, and p​ represent? If the confidence level is 90​%, what is the value of α​?