A random sample is selected from a normal population with a mean of μ = 110 and a standard deviation of σ = 11. After treatment is administered to the individuals in the sample, the sample mean is found to be M = 115. Based on Cohen’s d, which of the following best describes the effect size?- ○ Very small- ○ Very large- ○ Small to medium- ○ None of the above The question asks: "What z values form the boundaries of the critical regions for a two-tailed hypothesis test, using alpha level of α = .01?"The answer choices provided are:- ±2.58- ±0.025- ±2.33- ±1.00This question is related to hypothesis testing in statistics, specifically focusing on identifying the z-values that mark the critical regions for a specified alpha level in a two-tailed test. These critical values are key in determining whether to reject the null hypothesis.

We have to calculate Cohen d and critical value for given level of significance.

Answered: What z values form the boundaries of…

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 are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.72. You use a significance level of α=0.02 H0:p=0.72 H1:p<0.72You obtain a sample of size n=291n=291 in which there are 192 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.72. There is not sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.72. The sample data support the claim that the…
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What z values form the boundaries of the critical regions for a two-tailed hypothes test, using alpha level of a = .01? %3D +2.58 +0.025 +2.33 +1.00