wooиноvalle T 912Find The criticalneeded to construct a confidencehavex Interval of the Givenlevel with given Sample sizea) For level 90% sampo Size 1B) For level 9810 and Sample 11C Forlevel as% and Sample Size 25D) For level 99%0 and samposize 14

Suppose we want to compute the confidence interval of population mean and we are given n samples…

Answered: Find The critical valle T 912 needed to…

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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Part 1 of 2 (a) How large a sample must be Round the critical value to no les Round the sample size up to the A sample size of is needec 4.7. Part 2 of 2 (b) If the required confidence (Choose one) ▼ because
Given the linear correlation coefficientr and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.353, n = 15 O A) Critical values: r = +0.532, no significant linear correlation B) Critical values: r = 0.514, no significant linear correlation C) Critical values: r = ±0.514, significant linear correlation D) Critical values: r = ±0.514, no significant linear correlation
23 b. Find the critical value t a/2 corresponding to a 95% confidence level
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. 20) r = 0.221, n = 90 A) Critical values: r = ±0.207, no significant linear correlation B) Critical values: r = 0.217, significant linear correlation C) Critical values: r = ±0.217, no significant linear correlation D) Critical values: r = ±0.207, significant linear correlation 20)
18) A random sample of n measurements was selected from a population with unknown mean u and known standard deviation a. Calculate a 95% confidence interval for u for the given sibuation. Round to the nearest hundredth when necessary. n= 125, x= 91, o 20 %3D
suppose X has a mounded-shaped distribution with a standard deviation of O= 3. Find the minimal sample size required so far that for a 95% confidence interval, the maximal margin of error is E=0.4
50 individuals were asked to choose their favorite fruit between 5 options. ( banana , figs? Mango , grapefruit and strawberry) Q: obtain a suitable measure of central tendency
Exercise 1: You are interested in determining the average number of social media accounts people have. You interview 30 people at random and the number of social media accounts they have has a sample mean of 7.1 and a sample standard deviation of 2.09. a) b) Define the parameter of interest. State and check if the assumptions needed for constructing the appropriate CI for the parameter of interest are satisfied. c) Find a 90% confidence interval for the parameter defined in part a). Use the table, not the calculator to find the appropriate critical value. d) Write a sentence to interpret the CI computed in part c).
Using a TI 84 graphing calculator, Find the minimum sample size required in order to construct a 95% confidence interval about the population mean µ of 10 year old boys’ heights, where you want the error to be within 3 cm of the population mean. Several years ago, the population standard deviation was 8.7 cm. Be sure to show work as well as calculator commands used.

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Find The critical valle T 912 needed to construct a confidence havex Interval of the Given leve, with given Sample size a) For level 90% sampe Size 7 13) For level 98%0 and Sample || C) For level 95% and Sampo Size 25 D) For level 99%0 and samplesize 14