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To examine the effect of frowning on perceptions of neuroticism, a researcher hypothesized that the more a person frowns the more neurotic he will be perceived as and recruited a sample of 25 adults and asked them to watch a video and then rate the person's level of neuroticism. The videos were used in previous research but were modified by increasing the number of times the person in the video frowns. Based on previous research, the rating scores for the original video were known to form a normal distribution with a mean of 65 and standard deviation of 10. The sample mean for the modified videos was M= 70. What is the absolute value of the critical z-score for a one-tailed test (x=0.05)? 2.5 1.96 1.65 0.0062

To examine the effect of frowning on perceptions of neuroticism, a researcher hypothesized that the more a person frowns the more neurotic he will be perceived as and recruited a sample of 25 adults and asked them to watch a video and then rate the person's level of neuroticism. The videos were used in previous research but were modified by increasing the number of times the person in the video frowns. Based on previous research, the rating scores for the original video were known to form a normal distribution with a mean of 65 and standard deviation of 10. The sample mean for the modified videos was M= 70. What is the absolute value of the critical z-score for a one-tailed test (x=0.05)? 2.5 1.96 1.65 0.0062

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 examine the effect of frowning on perceptions of neuroticism, a researcher hypothesized that the more a person frowns the more neurotic he will be perceived as and recruited a sample of 25 adults and asked them to watch a video and then rate the person's level of neuroticism. The videos were used in previous research but were modified by increasing the number of times the person in the video frowns. Based on previous research, the rating scores for the original video were known to form a normal distribution with a mean of 65 and standard deviation of 10. The sample mean for the modified videos was M= 70. What is the absolute value of the critical z-score for a one-tailed test (x=0.05)? 2.5 1.96 1.65 0.0062
Transcribed Image Text:To examine the effect of frowning on perceptions of neuroticism, a researcher hypothesized that the more a person frowns the more neurotic he will be perceived as and recruited a sample of 25 adults and asked them to watch a video and then rate the person's level of neuroticism. The videos were used in previous research but were modified by increasing the number of times the person in the video frowns. Based on previous research, the rating scores for the original video were known to form a normal distribution with a mean of 65 and standard deviation of 10. The sample mean for the modified videos was M= 70. What is the absolute value of the critical z-score for a one-tailed test (x=0.05)? 2.5 1.96 1.65 0.0062
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