Question

Do hypothesis testing (t test)

Test grade of students against 88 - insert the SPSS output in the space below.

a- What would be the alternate hypothesis for the study?                                                

                               

b- Wh     at would be the null hypothesis?                                                    

               

c- What Level of Significance do you choose?                                              

d- What is the computed t critical value for the study?                                

                               

e- What is the P-value of the test?                  

               

f- What is the conclusion?

Gender	Grade	Ehicity
Female	87	African American
Male	95	Hispanic
Female	81	White
Female	74	White
Female	73	African American
Male	92	African American
Female	63	White
Female	55	White
Female	94	White
Female	84	White
Male	88	White
Male	78	Hispanic
Male	75	African American
Male	93	Hispanic
Female	87	Hispanic
Male	65	Hispanic
Male	90	African American
Female	89	African American
Female	82	White
Female	77	African American
Female	82	White
Female	72	White
Female	86	White
Female	60	White
Female	90	Hispanic
Male	87	Hispanic
Female	89	African American
Male	77	African American
Male	76	Hispanic
Female	80	Hispanic
Female	74	Hispanic
Female	88	White
Female	80	White
Female	80	African American
Female	81	White
Male	74	Hispanic
Male	80	White
Female	74	African American
Female	91	White
Male	74	White

Answer 1

ANSWER::

a)

- What would be the alternate hypothesis for the study?

Ha:

b)

- What would be the null hypothesis?

Ho:

c)

- What Level of Significance do you choose?   

t Level of Significance =alpha=.05

d)

- What is the computed t critical value for the study?

df=39

t critical for two tail is

=T.INV.2T(0.05,39)

=2.02269092

-5.100 is the test statistic which we got as

t=xbar-mu/SE

(80.4250-88)/(9.39418/sqrt(40))

=-5.099807

=-5.1

e)

- What is the P-value of the test?   

p=0.000

f)

- What is the conclusion?

alpha=0.05

p=0.000

p<0.05

Reject Ho

Accept Ha

Conclusion:

There is no sufficient statistical evidence at 5% level of signiifcance to conlcude that Test grade of students is88

meaning

est grade of students is against 88

(OR) FOR BETTER UNDERSTANDING

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