Question

Consider the following. n = 22, x = 126.2, s2 = 21.5, Ha: σ2 > 15,...

Consider the following.

n = 22, x = 126.2, s2 = 21.5, Ha: σ2 > 15, α = 0.05

Test H0: σ2 = σ02 versus the given alternate hypothesis.

State the test statistic. (Round your answer to two decimal places.)

χ2 =

State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to two decimal places.)

χ2 >
χ2 <

Construct a (1 − α)100% confidence interval for σ2 using the χ2 statistic. (Round your answers to two decimal places.)

? to ?

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

The statistical software output for this problem is :

χ2 = 43.14

χ2 > 32.67

χ2 < None

Confidence interval is : 273.61 to 944.02

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