Question

Kuya is fond of mangoes. However, being a financially discreet person, he wanted to compare prices per pound between the Korean and Vietnamese stores in Orlando.

PRICES ($) PER POUND
Vietnamese	Korean
14.55	18.05
19.99	18.26
14.24	12.99
13.95	12.45
12.22	11.64
14.55	17.45
14.79	16.15
14.99	14.71
11.34	13.99
13.55	18.41
11.99	19.10
11.34	13.35
14.05	17.12
11.36	14.25
16.55	19.99

The obtained statistic is:

t = - 1.92

t = 1.92

t = - 2.09

t = 2.09

The associated p value is:

.0458

.0464

.6408

.4068

Decision is:

reject the null

retain the null

Answer 1

1. The obtained t statistic is caluclated in the data analysis in excel.

-2.09

2. t = 2.09

The associated p value is:

P Value Results

t=-2.09   DF=28   

   The two-tailed P value equals 0.0458
   By conventional criteria, this difference is considered to be statistically significant.

3.

.4068

Decision is:

The rejection rule is: reject null hypothesis if p- value is less than 0.05 , 0.01 or 0.1. If you reject the null hypothesis, that means the alternative hypothesis will be accepted. But if you fail to, that means the claim of the null hypothesis after your research is valid.

Alpha = 0.05

P value = 0.4068 in this example

s0 P>0.05 - (0.4068>0.05)

so criteria will be retain the null