Statistics competency scores, Basic Statistics

Assignment Help:

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

11

14

14

8

10

15

15

5

12

12

15

4

13

13

10

4

15

13

15

 

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?

 

 


Related Discussions:- Statistics competency scores

What is appropriate and parametric statistical procedure , Questions 1....

Questions 1.  What would be the appropriate statistical procedure to test the following hypothesis:  "Triglyceride values are a good predictor of weight in obese adults." 2.

Values of income and intrest rate, Now imagine that consumption is given as...

Now imagine that consumption is given as:             C = 400 + 0.9YD - 1,750i And as above:       Y = PE = C + I + G + NX                           (Income identity)

What is meaning of the ldd detection strategy, A, Suppose a CD player playe...

A, Suppose a CD player player tries to detect whether its partner is C player instead of a DD player by looking for external signals that are at least as typical for DD players tha

Explain correlation coefficient, Q. Explain Correlation Coefficient? A...

Q. Explain Correlation Coefficient? Ans. The strength of a linear correlation is determined by how precisely the y variable shifts as the x variable increases. The two pi

Adjusting entries, The notes receivable were accepted from several customer...

The notes receivable were accepted from several customers. The notes were issued on Sept. 1,2011 and will be settled together with a 20% interest on May 31, 2011.

Calculate the average account balance, In June 2009, the average Australian...

In June 2009, the average Australian credit card account balance was $3,127, according to data extracted Assuming that these balances are approximately Normally distributed with a

Calculate the probability of company, a)  The US Food and Drug Administrati...

a)  The US Food and Drug Administration has veto power over the choice of drug names. In 2004, it used this power regularly, rejecting 36% of the names proposed by companies for re

Calculate the investments through model, Anna is considering investing $150...

Anna is considering investing $150,000 by dividing it into three investments. But she is not sure how much to put in each one. The first investment is known to follow a uniform dis

Mean, It is a numerical average, as equal to the sum of terms in a given se...

It is a numerical average, as equal to the sum of terms in a given series divided by the number of terms in that series is the mean which is also called the expected value.

Appropriate relationship of varibles, How to write it with business implica...

How to write it with business implication of the analysis?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd