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

Find mode and median, The following data shows marks obtained by 40 student...

The following data shows marks obtained by 40 students in a Statistics test. 75 99 72 54 25 40 65 32 69 10 85 48 52 80  63 64 35 62 51 71 67 57 95 74 56 69 61  49 45 63 39

Hypothesis testing, The caffeine is expected to lower reaction time by an a...

The caffeine is expected to lower reaction time by an average of 30 msec. Scores on the simulator task for the regular population (without caffeine) form a normal distribution with

Binomial probability distribution, if the probability of getting caught cop...

if the probability of getting caught copying someone else s exam is 0.2 find the probability of not getting caught in 3 attempts assume independence

What is job costing, What is job costing? Definition of job costing, Job co...

What is job costing? Definition of job costing, Job costing usually, it is the allocation of all material, time & expenses to an individual project or job. Particularly, Jobs costi

Accrual basis in accounting , The foundation sales whereby income are ackno...

The foundation sales whereby income are acknowledged when gained and considerable regardless of when collected; and costs are noted on a corresponding basis when suffered. All amaz

Statistics for management, characteristics of statistics and any two applic...

characteristics of statistics and any two application of statistics

Analyze data in statistical procedure , Study A                            ...

Study A                                      Study B                       Study C x 2 = 1.683                    F = 7.357                    r = .83 df = 4

Armitage-dollmodel, Armitage-Dollmodel The model of carcinogenesis in ...

Armitage-Dollmodel The model of carcinogenesis in which the basic idea is that the essential variable determining the change in the risk is not age, but time period. The model

calculate the chi-square statistic, The table below shows a breakdown of w...

The table below shows a breakdown of women between the ages of 20 to 64 who have had a Pap smear--it shows the number in each age group cross tabulated with the time of their last

Quantitative variable, a) Statistics are collecting, organizing, summarizin...

a) Statistics are collecting, organizing, summarizing and presenting a set of data. b)  Inferential statistics is the learn of a sample that enables us to make estimates about t

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