Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis testing for dependent samples using Paired t test.

A group of 20 sales associates agree to go during a week-long sales class to improve their productivity.  The amount of their sales is computed for one month before and one month after the training course. Run the paired t-test to find out if:

Is there evidence to propose that the training course helps out sales people?

Must we send the rest of our sales associates to the course?

 

Sales #

Before

After

1

$ 33,766.65

$ 37,483.57

2

$ 52,827.74

$ 37,871.17

3

$ 26,654.23

$ 22,036.40

4

$ 21,758.96

$ 28,712.85

5

$ 42,708.70

$ 33,083.67

6

$ 38,123.38

$ 25,527.58

7

$ 18,064.69

$ 25,912.90

8

$ 21,891.92

$ 25,658.53

9

$ 44,578.95

$ 33,012.29

10

$ 38,907.00

$ 51,140.65

11

$ 34,452.24

$ 26,601.97

12

$ 40,607.04

$ 41,688.33

13

$ 10,049.96

$ 48,257.45

14

$ 4,678.23

$ 5,017.87

15

$ 26,160.92

$ 24,297.28

16

$ 27,392.57

$ 39,360.24

17

$ 44,098.47

$ 57,434.46

18

$ 65,263.37

$ 52,551.86

19

$ 29,605.20

$ 24,895.86

20

$ 5,133.71

$ 10,617.06

 

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920088

Have any Question? 


Related Questions in Statistics and Probability

Madison has just burnt 15 songs onto a music mix cd 5 are

Madison has just burnt 15 songs onto a music mix CD, 5 are country, 5 are pop, and 5 are Disney songs. If she is interested in randomly listening to 3 songs, how many different combinations of songs can she listen to if ...

A prove that any sequence that converges in the mean square

(a) Prove that any sequence that converges in the mean square sense must also converge in probability. Hint: Use Markov's inequality. (b) Prove by counterexample that convergence in probability does not necessarily imply ...

Consider again the joint cdf given in exercisea for

Consider again the joint CDF given in Exercise: (a) For constants and a, such that  b, and  , find  (b) For constants c and d, such that   find  (c) Find   Are the events   statistically independent? Exercise A colleague ...

Two players compete against each other in a game of chance

Two players compete against each other in a game of chance where Player A wins with probability 1/3 and Player B wins with probability 2/3. Every time Player A loses he must pay Player B $1, while every time Player B los ...

Consider a geometric random variablenbspnbspfind the

Consider a geometric random variable,    Find the entropy of this random variable as a function of p .

Derive a relationship between the k th factorial moment for

Derive a relationship between the k th factorial moment for a nonnegative, integer valued random variable and the coefficients of the Taylor series expansion of its probability-generating function, HX( z) , about the poi ...

Consider a poisson counting process with arrival rate

Consider a Poisson counting process with arrival rate λ Suppose it is observed that there have been exactly arrivals in   be the times of those arrivals.    be the order statistics associated with the X   Show that the j ...

The following is the number of minutes to commute from home

The following is the number of minutes to commute from home to work for a group of nurses. A frequency distribution needs to be developed: 18          5        48        37        41        19          2        26        ...

In a digital communication system a block of data bits is

In a digital communication system, a block of data bits is mapped into an -bit codeword that typically contains the information bits as well as redundant bits. This is known as an block code. The redundant bits are inclu ...

After gaining an understanding from the video on secondary

After gaining an understanding from the video on secondary data, provide at least two public websites where we can get data for research. Here's one example. We can pull the unemployment rate for each state from the bure ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate