Question

In a US senatorial election, 9 voters were randomly chosen from those who voted for a...

In a US senatorial election, 9 voters were randomly chosen from those who voted for a candidate from a conservative party, and 9 were chosen from those who voted for a liberal candidate. Their ages are given below.

Conservative: 51, 76, 62, 55, 39, 43, 46, 49, 56

Liberal: 44, 62, 60, 51, 35, 41, 39, 39, 36

a) Test for equal variances between the two groups using alpha = 0.05.

b) Confirm your answer using software, either R or Excel. Give the result

Math   Statistics-And-Probability   
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Answer #1


_________________________

(b)

F-Test Two-Sample for Variances
Variable 1 Variable 2
Mean 53 45.22222
Variance 123.5 102.4444
Observations 9 9
df 8 8
F 1.205531
P(F<=f) one-tail 0.398955
F Critical one-tail 3.438101
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