a. the test statistic is? b. there are how many degrees of freedom? c. the criti
ID: 3020914 • Letter: A
Question
a. the test statistic is?
b. there are how many degrees of freedom?
c. the critical value is?
d.should the null hypothesis be rejected
a
8-2 MyStatlab: Module Eight Problem Set INV Score: S2.39% (34,06 of G5 pts) Determirne (a) the x' test statistic, (0j the degrees of freedon, (e) the critical value usng a-0.05, and (O test the hypothesis at the e-005 level of significance Ho The random variable X is bisonial with n 4.p-08 111: The random variable X is not binomial with n , p 0.5 (a) The test statistic is Round to twe decimal places as needed.Explanation / Answer
Goodness of Fit Test
observed
expected
O - E
(O - E)² / E
2
1.600
0.400
0.100
38
25.100
12.900
6.630
119
150.800
-31.800
6.706
437
402.200
34.800
3.011
386
402.200
-16.200
0.653
Total
982
981.900
0.100
17.099
a). the test statistic is? 17.10 ( two decimals)
b. there are how many degrees of freedom? 4
c. the critical value is? 9.488
d.should the null hypothesis be rejected
calculated chi square =17.10 > 9.488 table value.
The null hypothesis is rejected.
Goodness of Fit Test
observed
expected
O - E
(O - E)² / E
2
1.600
0.400
0.100
38
25.100
12.900
6.630
119
150.800
-31.800
6.706
437
402.200
34.800
3.011
386
402.200
-16.200
0.653
Total
982
981.900
0.100
17.099
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