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To what extent are sales people more extroverted than the general population? To help find out, Alice collects a sample of 25 sales people Each completes a scale of extroversion (from 1-7) with the following national norms: μ = 3.79, o = 1.55. Alice decides to use the NHST approach with the null hypothesis of no difference from the national norm (HO: µ salespeople = 3.79). Given a = .05, which of the following that would indicate a statistically significant finding.

To what extent are sales people more extroverted than the general population? To help find out, Alice collects a sample of 25 sales people Each completes a scale of extroversion (from 1-7) with the following national norms: μ = 3.79, o = 1.55. Alice decides to use the NHST approach with the null hypothesis of no difference from the national norm (HO: µ salespeople = 3.79). Given a = .05, which of the following that would indicate a statistically significant finding.

MATLAB: An Introduction with Applications
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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To what extent are sales people more extroverted than the general population? To help find out, Alice collects a sample of 25 sales people Each completes a scale of extroversion (from 1-7) with the following national norms: µ = 3.79, o = 1.55. Alice decides to use the NHST approach with the null hypothesis of no difference from the national norm (H0: μ salespeople = 3.79). Given a = .05, which of the following that would indicate a statistically significant finding. p=.5 p = .01 z = 0 (where z is computed via the national μ and o) The sample mean is 5.5, 95% CI [3, 7] The sample mean is 3.9, 95% CI [3.8, 4.0] The sample mean is 3.81, 95% CI [3.80, 3.82] No O O O OC O Yes O O
Transcribed Image Text:To what extent are sales people more extroverted than the general population? To help find out, Alice collects a sample of 25 sales people Each completes a scale of extroversion (from 1-7) with the following national norms: µ = 3.79, o = 1.55. Alice decides to use the NHST approach with the null hypothesis of no difference from the national norm (H0: μ salespeople = 3.79). Given a = .05, which of the following that would indicate a statistically significant finding. p=.5 p = .01 z = 0 (where z is computed via the national μ and o) The sample mean is 5.5, 95% CI [3, 7] The sample mean is 3.9, 95% CI [3.8, 4.0] The sample mean is 3.81, 95% CI [3.80, 3.82] No O O O OC O Yes O O
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