Mathematics, 30.03.2020 17:37, emwemily
Slices of pizza for a certain brand of pizza have a mass that is approximately normally distributed with a mean of 67.7 grams and a standard deviation of 2.28 grams. Round answers to three decimal places. a) For samples of size 20 pizza slices, what is the standard deviation for the sampling distribution of the sample mean? b) What is the probability of finding a random slice of pizza with a mass of less than 67.2 grams? c) What is the probability of finding a 20 random slices of pizza with a mean mass of less than 67.2 grams? d) What sample mean (for a sample of size 20) would represent the bottom 15% (the 15th percentile)? grams
Answers: 2
Mathematics, 21.06.2019 20:00, Yumimiku5989
Which number completes the inequality? 2/3 < _ < 7/9
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Mathematics, 21.06.2019 23:00, koryhudson8124
How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f
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