Calculus and Above

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Prompt: The population has a mean of 5 and a standard
Prompt B: The population has a mean of 5 and a standard deviation . A sample of 100 is taken. According to Prompt B, What is the standard deviation of the sampling distribution? a) .014 b) .14 c) 14 d… read more
Scott
Scott
MIT Graduate
Master's Degree
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1. In a certain region, the mean annual salary for plumbers
1. In a certain region, the mean annual salary for plumbers is $51,000. Let x be a random variable that represents a plumber's salary. Assume the standard deviation is $1300. If a random sample of 100… read more
Kofi
Kofi
PhD in Statistics
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When to Use What: For each example below you should start to
When to Use What: For each example below you should start to construct a confidence interval by identifying which distribution should be used to find the margin of error. It is possible that you won't… read more
Kofi
Kofi
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When to Use What: For each example below you should start to
When to Use What: For each example below you should start to construct a confidence interval by identifying which distribution should be used to find the margin of error. It is possible that you won't… read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
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1. Consider an experiment that results in a positive outcome
1. Consider an experiment that results in a positive outcome with probability 0.38 and a negative outcome with probability 0.62. Create a new experiment consisting of repeating the original experiment… read more
Ryan
Ryan
Bachelor's Degree
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Chapter 6 00. The average rent in a city is $1,570 per month
Chapter 6 00. The average rent in a city is $1,570 per month with a standard deviation of $200. Assume rent follows the normal distribution. Use the empirical rule to answer the following questions. a… read more
akch2002
akch2002
Master's Degree
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For ryan. I have one more request about that exam and would
For ryan. I have one more request about that exam and would like to know what's a good time to post it.… read more
Ryan
Ryan
Bachelor's Degree
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A sample of 120 U.S. households has a mean computer usage time
A sample of 120 U.S. households has a mean computer usage time of 19.2 hours per week with a sample standard deviation of 3.3 hours. Find a 99% confidence interval for the mean computer usage time of … read more
Stevewh
Stevewh
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Bachelor's Degree
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1. What is the primary reason for applying a finite population
1. What is the primary reason for applying a finite population correction coefficient? A. If you don't apply the correction coefficient, your confidence intervals will be too narrow, and thus overconf… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
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Use the following sample data to answer questions 1 through 4:
Use the following sample data to answer questions 1 through 4: -1, 0, 2, 3, 7, 10, 10 _____1. The mean, X , of the data above is (to the nearest 1/10) a. 8.3 b. 9.0 c. 9.4 d. 4.4 _____2. The median of… read more
Trigeoscal
Trigeoscal
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1) The main purpose of descriptive statistics is to A.
1) The main purpose of descriptive statistics is to A. summarize data in a useful and informative manner B. make inferences about a population C. determine if the data adequately represents the popula… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Problems I am stuck on my homework with: 1.With regards to
Problems I am stuck on my homework with: 1.With regards XXXXX XXXXX standard normal distribution complete the following: (a) Find P(z > 0), the percentage of the standard normal distribution above … read more
Trigeoscal
Trigeoscal
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Master's Degree
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19) A discrete variable A. is an example of a qualitative
19) A discrete variable A. is an example of a qualitative variable B. can assume only whole number values C. can assume only certain clearly separated values D. cannot be negative 20) A nominal scale … read more
MyVirtualCPA
MyVirtualCPA
Master's Degree
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1) Which of the following measures of central location is affected
1) Which of the following measures of central location is affected most by extreme values? A.Mean B.Median C.Mode D.Geometric mean 2) Which level of measurement is required for the median? A.Nominal B… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
5,451 satisfied customers
Pg.431 1)The mean of the sampling distribution of means is
Pg.431 1)The mean of the sampling distribution of means is equal to the mean of the population. T-F, and why or why not? 2) In the formula for the Confidence Interval for the Mean, if the Confidence C… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
A worker randomly selects 16 packages from the mail. The sample
A worker randomly selects 16 packages from the mail. The sample has a mean weight of 13.5 lbs and a population standard deviation of 3.21 lbs. The weights of all packages are normally distributed. a. … read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
Master's Degree
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TCO 6) Horse race time is found to be normally distributed
TCO 6) Horse race time is found to be normally distributed with a mean value of 10 minutes and a standard deviation of 2 minutes. Horses whose race time is in the top 5% will not be eligible to partic… read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
Master's Degree
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BONUS!!! I need help with my statistics homework tonight before
BONUS!!! I need help with my statistics homework tonight before class 6:00 (I'm going in a little late) 1. A sample of 5 companies were examined for changes in their relative market share. The results… read more
Math-John
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