Mathematics, 03.12.2019 17:31 preservations
1. the heights were recorded for a simple random sample of 270 junior. the mean of this sample was 66.5 inches. the heights are known to be normally distributed with a population standard deviation of 5.1 inches. at a 0.05 significance level, test the claim that the average height of a freshman differs from the 1956 average freshman height of 65.8 inches. i. state the null and alternative hypotheses. ii. state the significance level for this problem.
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The graph below shows the line of best fit for data collected on the number of cell phones in cell phone cases sold at the local electronic store on four different days
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1. the heights were recorded for a simple random sample of 270 junior. the mean of this sample was 6...
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