Math Homework

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1. Question Provide an appropriate response. If selecting
1. Question: Provide an appropriate response. If selecting samples of size n > 30 from a population with a known mean and standard deviation, what requirement, if any, must be satisfied in order to… read more
Chirag
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Here is another series of questions if you have time throughout
Here is another series of questions if you have time throughout the day. 1. The manager of the purchasing department of a large banking organization would like to develop a model to predict the amount… read more
Stevewh
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The expected value of an unbiased estimator is equal to the
The expected value of an unbiased estimator is equal to the parameter whose value is being estimated. A) True B) False 2 All estimators are biased since sampling errors always exist to some extent. A)… read more
Jabi
Lecturer
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2) A recent study of breast cancer revealed that 13% of the
2) A recent study of breast cancer revealed that 13% of the women in the sample used antibiotics more than 500 days in their lifetime. Further, 79% of these “heavy antibiotics users” developed breast … read more
Greg
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21) The Information Commons in the main library has 150 personal
21) The Information Commons in the main library has 150 personal computers. The probability that any one of them will require repair on a given day is 0.02. To find the probability that exactly 25 of … read more
mhasan420
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For Susan Athena*** 1. Name the four basic sampling techniques. 2.
For Susan Athena*** 1. Name the four basic sampling techniques. 2. Why are samples used in statistics? A large population has a mean of 310 and a standard deviation of 37. Using the empirical rule, fi… read more
SusanAthena
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Master's Degree
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7-1 C1 For the normal distribution, the mean plus and minus
7-1 C1 For the normal distribution, the mean plus and minus 1.96 standard deviations will include about what percent of the observations? A. 50% B. 99.7% C. 95% D. 68% 7-2 C2 What is the area under th… read more
Osbert12
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24) The Big Red Arcade and Pizza Palace caters to young teens
24) The Big Red Arcade and Pizza Palace caters to young teens and sells tokens to play arcade games for 25¢ each and slices of pizza for 50¢ each. The distribution of sales of pizza slices per custome… read more
Scott
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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Master's Degree
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1) A sufficiently large coverage error will result in which
"1) A sufficiently large coverage error will result in which of the following? A. Probability sampling B. Non-response bias C. Statistics about the actual population rather than the target population … read more
mhasan420
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8.46 A random sample of 10 miniature Tootsie Rolls was taken
8.46 A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.43… read more
SusanAthena
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Master's Degree
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10) For a sample size of 1, the sampling distribution of the
10) For a sample size of 1, the sampling distribution of the mean will be normally distributed A. Only if the population values are larger than 30. B. Only if the population is normally distributed. C… read more
rajeevanpillai
Master's Degree
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23) To tell if the standard deviation of a process has changed,
23) To tell if the standard deviation of a process has changed, the control charts used are A. x bar and p charts. B. p and R charts. C. S and x bar charts. D. R and S charts. 24) In statistical proce… read more
abozer
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16) For a sample size of 1, the sampling distribution of the
16) 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 shape of the population is positively skewed… read more
abozer
Bachelor's Degree
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Describe, in your own words, the following terms and give an
Describe, in your own words, the following terms and give an example of each. a) Discrete random variable b) Continuous random variable c) Probability d) Binomial experiment e) Population parameter f)… read more
Greg
Master's Degree
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11. Which measures of central tendency will the sum of the
11. Which measures of central tendency will the sum of the deviations of each value from that average always be zero? a. Mode b. Arithmetic Mean c. Median d. Geometric mean e. None of the above. 12. I… read more
Chirag
Master's Degree
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Part I T/F and Multiple Choice Questions 1. The mean, median,
Part I T/F and Multiple Choice Questions 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 da… read more
Greg
Master's Degree
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Assignment 1 Keyword Exercise Describe, in your own words,
Assignment 1: Keyword Exercise Describe, in your own words, the following terms and give an example of each a. Discrete random variable b. Continuous random variable c. Probability d. Binomial experim… read more
Greg
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