sed on information from the Statistical Forum, the population mean daily cost of erating a car is $ 18. A random sample of 26 students who own cars found a sample ean operating cost per day of $17.30. The population standard deviation is known and value is $3.2. Test the alternative hypothesis that the population mean daily cost of erating a car for all students is lower than the national population average of $18. Use e 1% level of significance. Specify the null and the alternative hypotheses. Compute the Sample Test Statistic for this hypothesis test. Find the p-value for this hypothesis test. What is the decision for this hypothesis test.

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Based on information from the Statistical Forum, the population mean daily cost of
operating a car is $ 18. A random sample of 26 students who own cars found a sample
mean operating cost per day of $17.30. The population standard deviation is known and
its value is $3.2. Test the alternative hypothesis that the population mean daily cost of
operating a car for all students is lower than the national population average of $18. Use
the 1% level of significance.
1) Specify the null and the alternative hypotheses.
2) Compute the Sample Test Statistic for this hypothesis test.
3) Find the p-value for this hypothesis test.
4) What is the decision for this hypothesis test.
Transcribed Image Text:Based on information from the Statistical Forum, the population mean daily cost of operating a car is $ 18. A random sample of 26 students who own cars found a sample mean operating cost per day of $17.30. The population standard deviation is known and its value is $3.2. Test the alternative hypothesis that the population mean daily cost of operating a car for all students is lower than the national population average of $18. Use the 1% level of significance. 1) Specify the null and the alternative hypotheses. 2) Compute the Sample Test Statistic for this hypothesis test. 3) Find the p-value for this hypothesis test. 4) What is the decision for this hypothesis test.
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