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A student weighed a sample of 100 industrial diamonds. She found that the sample average weight was 4.80 grams and the SD was 0.28 grams. In the context of this setting, explain what is meant by the sampling distribution of an average
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On August 19, 2004, the Internet search firm Google went public, at an offer price of $85 per share. The IPO was unconventional in that Google used an auction to determine its offer price and sell shares to investors. In ...
A population has a mean u=81 and a standard deviation o=28. Find the mean and standard deviation of a sampling distribution of sample means with a sample size n=239. ux= ox=
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What is measured by the numerator of the z-score test statistic?
Looking for guidance: A distribution of exam scores has μ = 90 and σ = 10. In this distribution, Sharon's score is 9 points above the mean, Jill has a z-score of +1.20, Steve's score is ½ standard deviation above the mea ...
Can someone help me determine how 11.07 was obtained? In order to determine the Chi-Square Critical for the Chi-Square. You need to find out the Degrees of Freedom (DF) DF = (Number of Rows - 1 * Number of Columns - 1) ...
Your company's revenues were $3 million this year. You paid out $500,000 in salaries and your only other cash outflow was the purchase of a piece of construction equipment for $1 million that is to be depreciated to a ze ...
In families with four children, you're interested in the probabilities for the different possible numbers of girls in a family. Using theoretical probability (assume girls and boys are equally likely), compile a five-col ...
Given the probability distribution function: x 0 1 2 Probability 0.25 0.50 0.25 a. Graph the probability distribution function. b. Calculate and graph the cumulative probability distribution. c. Find the mean of the rand ...
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