Math Homework

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having some trouble with some homework questions... A researcher
having some trouble with some homework questions... A researcher wants to study the spending habits of customers of a local shopping mall. The mall manager claims that the average spending per custome… read more
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1) Unstructured interviews are best used for A. measuring
1) Unstructured interviews are best used for A. measuring worker productivity B. solving manufacturing defect problems C. assessing management effectiveness D. asking individualized questions with no … read more
Stevewh
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We want to estiamte a proportion p. What is the minimal sample
We want to estiamte a proportion p. What is the minimal sample size needed for a 95% confidence interval to have a a maximal margin of error of 0.06 if a preliminary estimate for p is 0.8? Let x be a … read more
Osbert12
Master's Degree
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1. Consider a normal population with µ = 25 and σ = 7.0. (A)
1. Consider a normal population with µ = 25 and σ = 7.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 30 with = 22. (C) Expl… read more
Scott
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11. (TCO 3) The ages of 24 employees in a company are listed
11. (TCO 3) The ages of 24 employees in a company are listed below: Use the stem & leaf plot to determine the shape of the distribution. Choose the best answer. 20,22,26 30,34,35,36,38 40,42,43,44,45,… read more
mhasan420
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Statistics- Detail only needed on the H0, Ha questions. Tx
Question 1 Which of the following probability experiments would result in a discrete random variable? a. Observing the number of minutes required to walk a mile b. Observing the number of light bulbs … read more
dhouse1940
Retired
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10. (TCO 4) A travel agency offers 4 different vacation packages
10. (TCO 4) A travel agency offers 4 different vacation packages to Europe. Their net profit for package 1 is \$500, for package 2 it is \$750, for package 3 it is \$900, and for package 4 it is \$1,500. … read more
Chirag
Master's Degree
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1. Which of the following would most likely” be a better measure
1. Which of the following would “most likely” be a better measure of a set of observations describing the incomes of a population? A. the mean B. the median C. the mode D. the range Use the following … read more
R.R. Jha
Bachelor's Degree
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10. (TCO 4) A local charity sells 100 raffle tickets for \$20
10. (TCO 4) A local charity sells 100 raffle tickets for \$20 each as part of a fund raiser. There is one Grand Prize of \$500, one First Prize of \$100, and 8 Second Prizes of \$50. Find the expected win… read more
Osbert12
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From 500 observations made over a two-week (80-hour) period
From 500 observations made over a two-week (80-hour) period the following status of a machine is: State of Observation Number of observations 1 Machine working or available for work 440 2 Machine down… read more
SusanAthena
Master's Degree
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Which of the following statements is consistent with the Central
Which of the following statements is consistent with the Central Limit Theorem? A. Means of samples of n=30 from an exponential distribution will be approximately normally distributed. B. When we know… read more
Sandhya_sharma
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9) A child was born into the Doe family each year for five
9) A child was born into the Doe family each year for five consecutive years. What is the variance of the ages of the Doe children? A. 2.5 B. 4.6 C. 2.0 D. 1.4 10) A multiple-choice test has 20 questi… read more
mhasan420
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for chirag Crop researchers plant 15 plots with a new varitey
for chirag: Crop researchers plant 15 plots with a new varitey of corn, the yield in bushels per acre are given below: 138 139.1 113.0 132.5 140.7 109.7 118.9 134.8 109.6 127.3 115.6 130.4 130.2 111.7… read more
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Statistics T F 1. A simple random sample is formulated
Statistics: T F 1. A simple random sample is formulated in such a manner that each item or person in the population has an equal chance of being included in the sample. T F 2. If nonprobability method… read more
rajeevanpillai
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1. For a sample size of 1, the sampling distribution of the
1. For a sample size of 1, the sampling distribution of the mean will be normally distributed A. Regardless of the shape of the population B. Only if the population values are larger than 30. C. Only … read more
Scott
Master's Degree
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1. A sample of 35 golfers showed that their average score on
1. A sample of 35 golfers showed that their average score on a particular golf course 80 with a standard deviation of 10. Answer each of the following (show all work): A) Find the 99% confidence inter… read more
abozer
Bachelor's Degree
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1. One factor in determining the size of a sample is the degree
1. One factor in determining the size of a sample is the degree of confidence selected. This is usually 0.95 or 0.99, but it may be any degree of confidence you specify. A. True B. False 2. The t dist… read more
Chirag
Master's Degree
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The width of a confidence interval will be a. narrower for
The width of a confidence interval will be: a. narrower for 98% confidence than for 90% confidence b. wider for a sample size of 64 than for a sample size of 36 c. wider for a 99% confidence than for … read more
peppers18
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