Math Homework

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A set of all possible data values for a subject under consideration is
1. A set of all possible data values for a subject under consideration is called ___. (Points : 5) descriptive statistics a sample a population inferential statistics 2. Which of the following can be … read more
Chirag
Master's Degree
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I think I have the first question answered, but I dont understand
I think I have the first question answered, but I don't understand the second question. Here are the questions: A recent study of the life span of portable compact disc players found the average to be… read more
Osbert12
Master's Degree
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Just cannot solve the rest of these homework problems. I just
Just cannot solve the rest of these homework problems. I just need the answers, as I will be able to to then find out from there how to do it. A study of apple trees showed that the average number of … read more
Ryan
Bachelor's Degree
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8. The life span of a battery is normally distributed, with
8. The life span of a battery is normally distributed, with a mean of 2300 hours and a standard deviation of 50 hours. What percent of batteries have a life span that is more than 2365 hours? What per… read more
Ryan
Bachelor's Degree
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1. Given the following problem, (a.) set up a probability distribution
1. Given the following problem, (a.) set up a probability distribution table & (b.) find the mean and standard deviation to two decimals. The random variable x represents the number of foul shots a pl… read more
Stevewh
Teacher
Bachelor's Degree
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1. The weights of turkeys processed at a distributor follow
1. The weights of turkeys processed at a distributor follow the normal distribution with a mean of 16 pounds and a variance of 4 pounds. The label weight is given as 12 pounds. a. What percent are und… read more
rajeevanpillai
Master's Degree
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find the qppropriate minimum sample size. you want to be 95%
Please who can get me a fast answer to any of these 16. Solve the problem. The following confidence interval is obtained for a population proportion, p: (0.707, 0.745). Use these confidence interval l… read more
Stevewh
Teacher
Bachelor's Degree
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Find the 95% confidence interval for the variance of the heights
Find the 95% confidence interval for the variance of the heights of maple trees if a sample of 26 trees has a standard deviation of 8 feet.… read more
Chirag
Master's Degree
10,329 satisfied customers
There is some evidence suggesting that you likely to improve
There is some evidence suggesting that you likely to improve your test score if you rethink and change answers on a multiple-choice exam ( Johnston, 1975). To examine this phenomenon, a teacher gave t… read more
mlamias
Statistical Consultant
Bachelor's Degree
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A hospital administrator wishes to know what proportion of
A hospital administrator wishes to know what proportion of discharged patients that are unhappy with the care received during hospitalization. a) How large a sample should be drawn if we let the error… read more
Chirag
Master's Degree
10,329 satisfied customers
The lifetime of a certain brand of battery is known to have
The lifetime of a certain brand of battery is known to have a standard deviation of 16 hours. Suppose that a random sample of 50 such batteries has a mean lifetime of 40.1 hours. Based on this sample,… read more
Osbert12
Master's Degree
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A 90% confidence interval around the variance was calculated.
A 90% confidence interval around the variance was calculated. For n=20, the confidence interval was 29.67-88.4. Give the variance of the sample. What is the value for a 95% confidence interval for the… read more
mlamias
Statistical Consultant
Bachelor's Degree
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Problem 41 1 The manufacturer of a particular battery pack
Problem 41 1 The manufacturer of a particular battery pack for a loptop com puter claims the battery sample of 64 such battery packs was selected and tested. The mean and standard sample of 64 such ba… read more
StatisticsExpert
Asst. Professor
Doctoral Degree
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Greg, 1. A sample of the math test scores of 35 fourth-graders
Greg, 1. A sample of the math test scores of 35 fourth-graders has a mean of 82 with a standard deviation of 15. a. Find the 95% confidence interval of the mean math test scores of all fourth-graders.… read more
Greg
Master's Degree
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1. A sample of the math test scores of 35 fourth-graders has
1. A sample of the math test scores of 35 fourth-graders has a mean of 82 with a standard deviation of 15. Find the 95% confidence interval of the mean math test scores of all fourth-graders. Find the… read more
abozer
Bachelor's Degree
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Construct a 95% confidence interval for the population mean,
Construct a 95% confidence interval for the population mean, m. Assume the population has a normal distribution. In a random sample of 26 computers, the mean repair cost was \$137 with a standard devia… read more
abozer
Bachelor's Degree
6,158 satisfied customers
The Savings and Loan where you work has asked you to compare
The Savings and Loan where you work has asked you to compare its new advertising campaign to the campaign it had been using. You have gathered sample data on the number of accounts for both the old an… read more
Greg
Master's Degree
1,292 satisfied customers
In what ways is the t distribution similar to the standard
In what ways is the t distribution similar to the standard normal distribution? In what ways is the t distribution different from the standard normal distribution? How does the formula for the t test … read more
Greg
Master's Degree
1,292 satisfied customers
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