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A random and indepently chosen sample of four bags of marbles each labeled 20 pounds, had weights of 20.5, 19.8, 20.8, and 20.0 pounds. Assume that the distribution of weights in the population is normal and answer the following:
The null and alternate hypotheses is: H? : µ = 20; H? : µ > 20- (I think this is correct)
* Calculate the p-value using t-distribution (exact value): 0.1577 (What I calculated)
* Calculate the test statistic using the formula and make sure to show your work.
* Complete a decision regarding the null hypothesis, and write your conclusion about the original claim. Round all values to the nearest thousandth. Use a 5% level of significance for the decision
q1 the weights of packets of cookies produced by a manufacturer have a normal distribution with mean 202 grams and
The remainder are defective. If 4 of the products are randomly selected, find the probability that all of them are acceptable.
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To compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability?
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suppose that a 2-year old boy named cahnce sits at a computer and types exactly 6 unique alphabet keys. what is the
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