1,010 Answered Questions for the topic Statistics Question

Statistics Question Statistics

03/21/16

Based upon this data which of the following conclusions are valid
In a survey based upon a random sample of 1000 custromers wishTV found that 47% of it's customers are satisified with wishTV's service. select all that apply  First choice: exactly 47% of... more
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Statistics Question Statistics

03/21/16

Read the problem Round all decimal answers to 3 decimals place if necessary
The heights of students are normally distributed with an average height of 65 inches and a standard deviation of 3.5 inches. If a student falls outside a 95% interval centered around the mean the... more
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03/20/16

Probability and Statistics Help!
There are 24 popsicles in a cooler. Ten are grape. Six are orange. Eight are cherry.If you grab 3 popsicles from the cooler, what is the probability they will be:a) All grapeb) All the same... more
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Statistics Question

03/18/16

(AT) What is the independent variable of this experiment? How many levels does it have?
It is ADHD treatment case study
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Statistics Question Frequency

03/17/16

Can someone help me/check over with this statistics word question
Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported... more
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Statistics Question

03/16/16

help with an equation
Can someone help me with the question. I figured out how to do the bottom two but with the notes i have i am not sure how to do the first equation.   For the numbers 1,2,4,16 compute the... more
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Statistics Question

03/16/16

did I answer this question correctly?
If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Explain   No I would not know how it was calculated. In order for me... more
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Statistics Question

03/15/16

statistical difference
what is the statistical difference if you have 4 pickers picking 100 apples and 1 picker picks 40, versus 2 pickers picking 100 apples and 1 picker picks 60
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Statistics Question

03/15/16

Not sure how to report 4.77 days. 4 days? Or 5 days?
I have a group of people answering how many days in a week they are physically active, so the scale is from 1 to 7. The average I got is 4.77 days, and the 95% CI is (4.42, 5.13). Then how should I... more
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Statistics Question

03/14/16

find the average age at which people will experience their first cardiac incident.
If the age of an initial cardiac incident (heart attack or sudden cardiac arrest) is normally distributed with a population standard deviation = 13 years, find the average age at which people will... more
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Statistics Question

03/14/16

Probability Statistics
A tomato farmer with a very large farm of approximately 2200 acres had heard about a new type of rather expensive fertilizer which would supposedly significantly increase his production. The frugal... more
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Statistics Question

03/13/16

A population consist of four values. 12,12,14,16
i have to list all samples of size 2 and compute the mean of each sample   Compute the mean of the distribution of the sample mean and population mean   Compare the... more
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Statistics Question

03/13/16

Statistics
Fewer young people are driving. In 1983, 87 percent of 19 year-olds had a driver's license. Twenty-five years later that percentage had dropped to 75 percent (University of Michigan Transportation... more
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Statistics Question

03/12/16

staistics questions
Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one. According to the survey, of the women... more
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Statistics Question Math Math Word Problem

03/11/16

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?
If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?
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Statistics Question Statistics

03/10/16

Sum of Squares/Statistics
For a statistics problem:I am given the sum of the set of data, and I need to find the sum of squares. How would I be able to do this without knowing each individual score, subtracting it from the... more
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Statistics Question

03/08/16

Binomial Process Question
A series of n independent trials are run for a Binomial Process with probability of success p. If the mean is found to be 2.4 and the variance is 1.7, what is p? (Please answer to 3 decimals of... more
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Statistics Question

03/06/16

Probability Statistics
If I have Mean 7.75What is the standard deviation of the time? (Do not round your intermediate calculations. Round your answer to 2 decimal places.)  
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Statistics Question

03/04/16

loan at 18% compounded quarterly, for 25000. There is a loan originally a fee of 2% of the principle, and there is also a credit-report application fee of 150,
What is the A,p,t,r,m,I and n.  For the theoretical loan that produces the aer without fees..  Fine the a,p,t,r,m,I and n.  For the theoretical loan that produces the aer with fees. Find the... more
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Statistics Question

03/04/16

Statistics Question
In an application to estimate the mean number of miles that downtown employees commute to work roundtrip each day, the following information is given: n = 20 = 4.33 s = 3.50 Based on this... more
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Statistics Question

03/03/16

What is the chance HRC finds a sample mean between $477 and $527?
Human Resource Consulting (HRC) surveyed a random sample of 60 Twin Cities construction companies to find information on the costs of their health care plans. One of the items being tracked is the... more
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Statistics Question Conditional Probability

03/01/16

Billy takes two tests in his probability and statistics class.
The probability that Billy would pass at least one test is 0.9. The probability that he passes both tests is 0.7. The tests are of equal difficulty (that is, the probability that Billy passes test... more
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Statistics Question

02/29/16

If four patients take the drug, what is the probability that none of the patients will experience side effects?
I have no idea how to answer this question
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Statistics Question

02/28/16

Mean of 158 and a standard deviation of 21. Find the mean and standard error of the mean of this sampling distribution when using random samples of size 5
Normally distributed. Answer choices are A. 158, 5 B. 158, 21 C. 158, 9.39 D. 158, 4.2
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Statistics Question

02/26/16

For a continuous probability distribution, 0 = x = 15. What is P(x > 15)? (Enter an exact number as an integer, fraction, or decimal.) P(x > 15) =
For a continuous probability distribution, 0 ≤ x ≤ 15. What is P(x > 15)? (Enter an exact number as an integer, fraction, or decimal.) P(x > 15) =
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