The next table shows the results of this independent t test. At the .05 significance level, can you conclude that…

The next table shows the results of this independent t test. At the .05 significance level, can you conclude that there is a difference in their mean times? Explain these results to a person who knows about the t test for a single sample but who is unfamiliar with the t test for independent means.

 

 

Save your time - order a paper!

Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won’t have to worry about the quality and deadlines

Order Paper Now

Hypothesis Test: Independent Groups (t test, unequal variance)         

Prada

Oracle      

12.170

14.875

mean     

1.056

2.208

std. dev.     

10

12

n              

16

df      

-2.7050

difference (Prada – Oracle)    

0.7196

standard error of difference    

0

hypothesized difference            

-3.76

 t      

.0017

 p-value (two-tailed)             

-4.2304

confidence interval 95.% lower    

-1.1796

confidence interval 95.% upper    

1.5254

margin of error