Assume that we want to construct a confidence interval. Do one of thefollowing, as appropriate: (a) find the critical value to/2, (b) find thecritical value Zα/2, or (c) state that neither the normal distribution northe t distribution applies.The confidence level is 95%, o is not known, and the normal quantileplot of the 17 salaries (in thousands of dollars) of basketball players ona team is as shown.OA. ta/2=(Round to two decimal places as needed.)OB.Zα/2 1(Round to two decimal places as needed.)OC. Neither the normal distribution nor the t distribution applies.z score1.2-0.80.4-0-0.4--0.8-1.2--1.6-Select the correct choice below and, if necessary, fill in the answer box to complete your choice.BA4200 8400 12600 16800 21000X ValuesQ

Answered: Assume that we want to construct a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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you calculated the sample data to construct a 90% and 99% confidence interval for the average diameter of ball bearings produced from this manufacturing process. These confidence intervals were created using the Normal distribution based on the assumption that the population standard deviation is known and the sample size is sufficiently large. The confidence intervals rounded to two decimal places are: 90%= ( 2.40, 2.64) and 99% = (2.34, 2.70) Interpret both confidence intervals. Make sure to be detailed and precise in your interpretation. It has been claimed from previous studies that the average diameter of ball bearings from this manufacturing process is 2.30 cm. Based on the sample of 50 that you collected, is there evidence to suggest that the average diameter is greater than 2.30 cm? Perform a hypothesis test for the population mean at alpha = 0.01. In your initial post, address the following items: Define the null and alternative hypothesis for this test in mathematical…
A laboratory tested n = 101 chicken eggs and found that the mean amount of cholesterol was = 82 milligrams with o = 9 milligrams. Find the margin of error E corresponding to a 95% confidence interval for the true mean cholesterol content, u, of all such eggs. Round your answer to the nearest tenth. %3D %3D %3D Type your answer...
If n=29, x¯(x-bar)=35, and s=12, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population.Give your answers to one decimal place.__________ < μ < _______Please, help me with my homework
Solve this for me
Which type of confidence interval should you use in this situation? A sample of 400 racing cars showed that 80 cars cost over $700,000. Find the 99% confidence interval of the true proportion of racing cars costing over $700,000. Question 3 options: 1) a confidence interval for the mean using a table value from the standard normal distribution. 2) a confidence interval for the mean using a table value from the t distribution. 3) a confidence interval for a proportion using a table value from the standard normal distribution. 4) a confidence interval for proportion using a table value from the t distribution. 5) none of the above.
let the variable T stand for a student t-distributed variable. find the following a. in a sample of 20 students, the t-value to use to determine a 95% confidence interval for a mean b. in a sample of 30 students, the t-value to use to determine a 98% confidence interval for a mean
Which of the following is the best estimate of the range of a population value given the sample value? 1. The critical value 2. The obtained value 3. Power 4. Confidence interval
If n=28, (x-bar)=45, and s=8, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.
Let μ denote some population mean of interest and suppose a 95% confidence interval for μ is calculated to be (0.63, 0.73) and a 99% confidence interval for μ is calculated to be (0.61,0.75). Also, suppose that we want to test H0: μ = 0.74 vs. Ha: μ ≠ 0.74 What can you say about the corresponding p-value? Choose from following letters. a. The corresponding p-value will be smaller than 0.05 but larger than 0.01. b. The corresponding p-value will be larger than 0.05. c. I can’t say anything about the corresponding p-value until I run the test.
f X=118, σ=24, and n=35, construct a 95% confidence interval estimate of the population mean,
If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p.Give your answers to three decimals < p <
In a survey of 2092 adults in a recent year, 748 made a New Year's resolution to eat healthier. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. The 90% confidence interval for the population proportion p is ( , ). Round to three decimal places as needed.

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