In a study of distances traveled by buses before the first major engine failure, a sample of 191 buses resulted in a mean of 96,700 miles and a standard deviation of 37,500 miles. At the 0.05 level of...

In a study of distances traveled by buses before the first major engine failure, a sample of 191 buses resulted in a mean of 96,700 miles and a standard deviation of 37,500 miles. At the 0.05 level of signıficance, test the manufacturer's claim that the mean distance traveled before a major engine failure is more than 90,000 miles. 1. Claim: Ho: Ha: 2. Level of Significance: Test- statistic: Tails in Distribution: 3. Reject Ho if: 4. Compute for the value of the test statistics. 5. Make a decision: 6. State the conclusion in terms of the original problem