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A professor is interested in whether there is a gap in counseling students' statistics competency scores between 1) those who have never taken any statistics course, 2) those who have only taken an undergraduate statistics course, 3) those who have taken COUN 503, and 4) those who have takenan advanced statistic course whereas working on a Ph. D. The professor gathers information from a random sample of students and obtains the statistics competency scores. The scoresare normally distributed.
1)
2)
3)
4)
7
11
13
15
6
14
8
10
5
12
4
a. What statistical test should be used to examine these data?
b. Identify H0 and Ha for this study.
c. Conduct the exactly analysis.
d. Should H0 be rejected? What should the researcher conclude?
how do you interpret the correlation on the basis of probable error
what is definition of Mode?
meaning
what are the types of index numbers?
Difference between an unadjusted trial balance and an adjusted trial balance? The variations between unadjusted test stability and altered test stability are the amounts registe
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the correlation between olympic gold medal times for the 1500 m run and year is -0.941 seconds per year
I need help with the following: Find the following probabilities for the normal random variable Z: 1) P(Z>1.76) 2) P(Z 3) P(0.59=Z=2.41)
1. A researcher is comparing two middle school 7th grade classes. One class at one school has participated in an arts program (involving putting on a musical play) which emphasized
An internal report issued by the marketing manager of a oil-change franchise claims that the mean number of miles between oil changes is for franchise customers is at least 3600 mi
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