Birth weight could be considered unusual
The birth weights for twins are normally distributed with a mean of 2353 grams and a standard deviation of 647 grams. Use z-scores to determine which birth weight could be considered unusual.
1200 g
2353 g
4338 g
2000 g
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Determine the error for each of the following forecasts. Compute MAD and MSE. Period Value Forecast Error 1 202 - - 2 191 202 3 173 192 4 169 181 5 171 174 6 175 172 7 182 174 8 196 179 9 204 189 10 219 198 11 227 211
Construct a 95% confidence interval for the average amount its credit card customers spent on their first visit to the chain's new store in the mall.
A researcher investigated the effect of volume of background noise on participants' accuracy rates while performing a difficult task. He tested three groups of randomly selected students and obtained the following means and sums of
Let X be a discrete random variable with possible values x = -1,0,1,2 and probability function f(x) = kx3 + 0.15 for x = -1,0,1,2.
The pizza shop wanted to determine what proportion of its customers ordered only cheese pizza. out of the 80 customers surveyed, 15 ordered cheese pizza. what is the 99% confidence interval of the true proportion of customers who order only cheese
Let X be a discrete random variable with possible values x = ?1,0,1,2 and probability function f(x) = kx3 + 0.15 for x = ?1,0,1,2.
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Risk and return, Risk and Return, Coefficient of Variation Based on the following information, calculate the coefficient of variation and select the best investment based on the risk/reward relations
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When people get involved in community and social change but do not hold official political positions, which of the terms best describes what they are part of
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