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Let X be a normal random variable with a mean of 50
I'm having trouble bringing all the info in my text 'together' and am wanting some workings and explanations along with answers for the following questions... Thanks in advance... Let X be a normal ra… read more
Susan Athena
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In a distribution with m = 80 and s = 20, a score of X = 85
In a distribution with m = 80 and s = 20, a score of X = 85 corresponds to a z-score of z = 1.50. (Points: 1) True False 2. In a distribution with s = 5, a z-score of z = +2.00 corresponds to a locati… read more
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Big packages of M&M Plain Candies have a mean weight of 16
Big packages of M&M Plain Candies have a mean weight of 16 ounces with a Standard Deviation of .15 ounces. A chocolate loving researcher decides to a random sample of 20 big bags of M&M Plian Candies … read more
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Match the letter of the definition on the right to the appropriate
Match the letter of the definition on the right to the appropriate symbol on the left. Symbols Definitions 1. S (Uppercase Sigma) a. Population size 2. m (Mu) b. Summation 3. s (Lowercase Sigma) c. Fa… read more
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The process that produces Sonora Bars (a type of candy) is
The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 56 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars… read more
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Transform the following set of values into z scores, then calculate
Transform the following set of values into z scores, then calculate the mean and standard deviation of the set of z scores (the mean of the z score should be 0 and the standard deviation should be 1).… read more
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For Curtis K The expected rate of return for the coming
For Curtis K: The expected rate of return for the coming year on FTC common stock is normally distributed with a mean of 14% and a standard deviation of 7%. Determine the probability of earning more t… read more
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(1.) Starting with the data values 70 and 100, add three data
(1.) Starting with the data values 70 and 100, add three data values to the sample so that the mean is 87, the median is 88, and the mode is 88. (2.) A class of 15 kindergarteners had the following we… read more
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31. A new weight-watching company, Weight Reducers International,
31. A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks with a standard deviation of 2.8 pounds. A ran… read more
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Standardized scores offers a way of comparing norm-referenced
Standardized scores offers a way of comparing norm-referenced scores. The z-score distribution is based on knowing how many standard deviations away from the mean a certain score is. Compare and contr… read more
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The Hudson Valley Bottling Company distributes root beer in
The Hudson Valley Bottling Company distributes root beer in bottles labeled 32 ounces. The Bureau of Weights and Measures randomly selects 50 of these bottles, measures their contents and obtains a sa… read more
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1. The mean, median, and mode are the most common measures
1. The mean, median, and mode are the most common measures of dispersion (spread). _____(T/F) 2. Each set of data has four quartiles; they divide the ranked data into four equal quarters. _____ (T/F) … read more
the prof
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1. The mean, median, and mode are the most common measures
1. The mean, median, and mode are the most common measures of dispersion (spread). _____(T/F) 2. Each set of data has four quartiles; they divide the ranked data into four equal quarters. _____ (T/F) … read more
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1. for which of the following situations is it appropriate ...
1. for which of the following situations is it appropriate to use a scatter diagram or scatter plot? a) presenting two qualitative variables b) presenting one qualitative and one quantitative variable… read more
abozer
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a cereal company claims that the mean weight of the ceral ...
a cereal company claims that the mean weight of the ceral in its packets is at least 14 oz. The weights (in ounces) of the cereal in a random sample of 8 of its cereal packets are listed below. 14.6 1… read more
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The Hudson Valley Bottling Company distributes root beer in
The Hudson Valley Bottling Company distributes root beer in bottles labeled 32 ounces. The Bureau of Weights and Measures randomly selects 50 of these bottles, measures their contents and obtains a sa… read more
DrTutor
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7. The scores of students on the ACT college entrance exam ...
7. The scores of students on the ACT college entrance exam in 2001 had a mean of 21.0 and a standard deviation of 4.7. The distribution of the scores is approximately normal. A. What is the probabilit… read more
mathsmart
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The birth weight of a baby is related to its gestation period. For a g
Gestation period Mean Birth Weight Standard Deviation Under 28 Weeks 1.88 lb 1.19 lb 28 to 31 Weeks 4.07 lb 1.87 lb 32 to 35 Weeks 5.73 lb 1.48 lb 36 Weeks 6.46 lb 1.20 lb 37 to 39 Weeks 7.33 lb 1.09 … read more
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