Hypotheses for a chi-square goodness-of-fit test are given, along with the sample data and the chi-square statistic. Hypotheses: H0:pA=0.3,pB=0.3, Ha: Some pi is not as given Sample Data:   A B C Observed(Expected) 28(38) 50(38) 48(50) Chi-square statistic=6.5   (a) What are the degrees of freedom for the test?   (b) What is the p-value? Round your answer to five decimal places.   (c) What is the conclusion, using a 5% significance level? Reject H0: There is evidence that the assumed proportions are wrong. Reject H0: There is evidence to support the assumed proportions. Do not reject H0: The assumed proportions appear to be wrong. Do not reject H0: The assumed proportions seem correct.

MATLAB: An Introduction with Applications
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Hypotheses for a chi-square goodness-of-fit test are given, along with the sample data and the chi-square statistic.

Hypotheses:
H0:pA=0.3,pB=0.3,
Ha: Some pi is not as given

Sample Data:

  A B C
Observed(Expected) 28(38) 50(38) 48(50)



Chi-square statistic=6.5

 

(a) What are the degrees of freedom for the test?

 

(b) What is the p-value?

Round your answer to five decimal places.

 

(c) What is the conclusion, using a 5% significance level?

Reject H0: There is evidence that the assumed proportions are wrong.
Reject H0: There is evidence to support the assumed proportions.
Do not reject H0: The assumed proportions appear to be wrong.
Do not reject H0: The assumed proportions seem correct.
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