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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.
Driver error can be listed as the cause of approximately of all fatal auto accidents, according to the American Automobile Association. Thirty randomly selected fatal accidents are examined, and it is determined that were caused by driver error.
Step-by-step explanation
Step 1.
We are given to use a left-tailed test. That’s why the alternative hypothesis has sign. Reject the null hypothesis if
and .
The following formula is used,
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