Find the 95% confidence interval of the true mean
A food snack manufacturer samples 7 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 12.7 oz. and the sample standard deviation is 0.40 oz., find the 95% confidence interval of the true mean
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A normal distribution has a mean of 45, and an unknown standard deviation. Which random variable value below could possibly have a z-score of 2.4?
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Ray wants to start a DVD rental program at his stores that he plans to call Henry's DVD Club. He refers to each of his customers as "members." Each member in the club is assigned a number.
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What is the smallest unit of an element that still can be identified as a specific element?
assume adults have IQ scores that are normally distributed with a mean of 105 and a standard dviation 20. find the probability that a rondomly selected adult has an IQ betwwen 93 and 117
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