A researcher wants to asses the self-discipline levels among undergraduate and graduate students. A random sample of 300 undergraduate students was selected with average score of 184 and standard deviation of 16( group 1). Also , a random sample of 350 graduate students was selected with average score of 153 and standard deviation of 21 (group 2). Is this enough evidence to conclude that undergraduate students score less, on average than the graduate students. [ assume that the population variances are equals]
A researcher wants to asses the self-discipline levels among undergraduate and graduate students. A random sample of 300 undergraduate students was selected with average score of 184 and standard deviation of 16( group 1). Also , a random sample of 350 graduate students was selected with average score of 153 and standard deviation of 21 (group 2). Is this enough evidence to conclude that undergraduate students score less, on average than the graduate students. [ assume that the population variances are equals]
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A researcher wants to asses the self-discipline levels among undergraduate and graduate students. A random sample of 300 undergraduate students was selected with average score of 184 and standard deviation of 16( group 1). Also , a random sample of 350 graduate students was selected with average score of 153 and standard deviation of 21 (group 2). Is this enough evidence to conclude that undergraduate students score less, on average than the graduate students. [ assume that the population variances are equals].
1. What is the value of the pooled sample variance for the difference between the sample means?
il. What is the value of the test statistic for testing the hypothesis Hop,-,=0 against H4,-H,
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