The accuracy of a coin counter machine is gauged to accept nickeh with a mean diameter of millimeters 21.21 mm. A sample of 39 nickles was drawn from a reported defective coin counter machine located near a school. The sample had a sample mean of 21211 mm and sample standard devlation 0.012 mm Test the claim that the mean nickel diameter accepted by this coin counter machine is greater than 21.21 mm. Test at the 0.1 significance level. ta) identify the correct alternative hypothesis H Op> 21.21 On< 21.21 Op= 21.21 Give all answers correct to 4 decimal places (bi The test statistic value is to Using the Tradtional method, the critical value idi Based on your answers above, do your OFaltoreject Ha ORect le

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