The formula used to calculate a large-sample confidence interval for p isp(1 - p)n(b) 90%What is the appropriate z critical value for each of the following confidence levels? (Round your answers to two decimal places.)(a) 95%(c) 99%(d) 80%* ± (z critical value)(e) 91%USE SALT

Given that formula used for CI : We have to calculate Z critical value We can use Z-table and Excel…

Answered: The formula used to calculate a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question Help is 7.2.6-T Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2. (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distrībution applies. ne 40- 30- The confidence level is 95%, o is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 0- 4000 8000 12000 16000 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= (Round to two decimal places as needed.) O B. Za12= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies. louenbel
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A survey of 50 young professionals found that they spent an average of $24.15w hen dining out, with a standard deviation of $12.06. Can you conclude statistically that the population mean is greater than $27? Use a 95% confidence interval is. The 95% confidence interval is _____ , _______As $27 is__________ of the confidence interval, we________ , conclude that the population mean is greater than $27. (Use ascending order. Round to four decimal places as needed.)
Use the sample information x¯x¯ = 35, σ = 7, n = 16 to calculate the following confidence intervals for μ assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) The 90% Confidence Interval is from ____to ____ (b) 95 percent confidence. (Round your answers to 4 decimal places.) The 95% Confidence Interval is from ____to ____ (c) 99 percent confidence. (Round your answers to 4 decimal places.) The 99% Confidence Interval is from ____ to ____
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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? (If you have access to software, you can use software to determine the critical values. Round your answers to three decimal places.) (a) A 95% confidence interval based on n = 18 observations.
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When computing a confidence interval for the population mean µ when the population SD a is known, what value of z* should be used for an 85% confidence interval? (The formula for the confidence interval is shown in the figure) (a) 1.26 (b) 1.96 (c) 1.44 (d) 1.84 (e) 1.64
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The formula used to calculate a large-sample confidence interval for p is p(1-P) n p ± (z critical value) USE SALT What is the appropriate z critical value for each of the following confidence levels? (Round your answers to two decimal places.) (a) 95%