Biostatics Assignment, SU, Malaysia A Company Claims That Its New Manufacturing Process Results In A Mean Weight Of 60 Grams For A Certain Product
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- A company claims that its new manufacturing process results in a mean weight of 60 grams for a certain product. A quality control analyst takes a random sample of 25 products and finds the mean weight to be 58 grams with a standard deviation of 4 grams. Test the claim at a significance level of 0.05 using a one-tailed t-test.
- A company that manufactures tennis balls claims that their balls have an average bounce height of 5 feet when dropped from a height of 6 feet. However, a customer complains that the balls they purchased do not meet this standard. The company wants to investigate the complaint by testing the hypothesis that the average bounce height of the balls they produce is indeed 5 feet. They randomly select a sample of 25 tennis balls and measure their bounce height when dropped from a height of 6 feet. The sample mean bounce height is 4.8 feet with a standard deviation of 0.6 feet. Conduct a hypothesis test at the 5% significance level to determine if the customer’s complaint is valid.
