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To find P (68 ≤ ≤ 73), describe the distribution of sample means.
Suppose that x has distribution with μ = 72 and σ =8.
(a) If random samples of size n = 9 are selected, can we say anything about the distribution of sample means?
(b) If the original x distribution is normal, can we say anything about the distribution of random samples of size 16? Find P (68 ≤ ≤ 73).
Determine a 95% confidence interval for the population mean.
If true explain and if false give an example. a. The significance level of a statistical test is equal to the probability that the null hypothesis is true. b. If the significance level of a test is decreased, the power of the test would be expected t..
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Would it be reasonable to conclude that the population mean is 63 pounds?
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What would that evaluation be and what is the margin of error?
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A certain random experiment can result in one of four different possible outcomes, which we'll call A, B, C and D.
Create a 95% confidence interval for true mean.
Which of the following events are disjoint and What proportion of the females rated their intelligence less than 7.
Here are the DMS odor thresholds for 10 untrained students:
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