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23 Nov 2021
Given information
Instructions: For the following ten exercises,
Hypothesis testing: For the following ten exercises, answer each question.
State the null and alternate hypotheses.
State the p-value.
. State alpha.
. What is your decision?
Write a conclusion.
Answer any other questions asked in the problem.
The US Department of Energy reported that of homes were heated by natural gas. A random sample of homes in Kentucky found that were heated by natural gas.
Step-by-step explanation
Step 1.
We are given to use a two-tailed test. That’s why alternative hypothesis has sign. Reject the null hypothesis if
and .
The following formula is used,
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