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How do you find the score when the sample mean is 26.72, sample size is 35, and the standard deviation is 2.1003912. Testing a Manufacturer's

How do you find the score when the sample mean is 26.72, sample size is 35, and the standard deviation is 2.1003912.

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Testing a Manufacturer's MPG Claim Companies often develop and test hypotheses about their products. For example, car manufacturers will test their cars to determine fuel efciency and miles per gallon. To ensure that products are safe and that they perform as advertised, regulatory and consumer protection groups also test oompanles' claims. You are working at a firm that conducts Independent testing for heavy industry Recently, an automobile manufacturer has been in the news for complaints about the highway gas mileage of their latest model minivan. You receive a contract from a consumer action group to test and write a report on the company's claim that Its minivans get 28 miles per gallon on the highway. The car company agrees to allow you to select randomly 35 low-mileage fleet minivans to test their highway mileage. Your test results gave you the following data: 29.7 ' 24.5 27.1 29.8 29.2 27.0 27.8 24.1 29.3 25.0 26.2 24.5 32.8 26.8 27.8 24.0 23.6 29.2 26.5 27.7 27.1 23.7 24.1 27.2 25.9 26.7 27.8 27.3 27.6 22.8 25.3 26.6 26.4 27.1 26.1

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