945 Answered Questions for the topic Statistics Question

Statistics Question

03/25/16

What is the minimum score required for admission?
Suppose ACT Mathematics scores are normally distributed with a mean of 20.8 and a standard deviation of 5.4. A university plans to admit students whose scores are in the top 30%
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Statistics Question Statistics Statistical Method

03/25/16

You want to determine the migration pattern of bears in Yellowstone park
Determine Whether the situation calls for a survey, an observational study or an experiment explain your answer.    you want to determine the migration pattern of bears in Yellowstone... more
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Statistics Question Statistics

03/23/16

Help with this stats question please
Systolic blood pressure (SBP) was measured for 30 people of different ages. The results are shown in the blue cells.Part 1 - Develop a best-fit regression line for this data. Using this line,... more
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Statistics Question

03/22/16

What is the best predicted value for the response variable
What is the best predicted value for the response variable if there is no evidence of significant correlation in a sample?
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Statistics Question Statistics

03/22/16

Round all decimals answers to 3 decimals places if necessary
The first 100 people to go to a minnesota Vikings football game (out of the 60,000 who attended the game) are given a survey asking them to evaluate the parking situation at the game. Is this a... more
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03/22/16

can somone please check my work.
The data from placebo 0mg is listed below. 57,27,32,31,34,38,71,33,34,53,36,42,26,52,36,55,36,42,36,54,34,29,33,33     What is the mean number of correct responses of the participants after... more
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Statistics Question

03/22/16

Alex and Juana went on a 116-mile canoe trip with their class. On the first day they traveled 29 miles. What percent of the total distance did they canoe?
I have to solve this problem. Multiple choice. 400%, 4%, 25%, or 0.25%                            
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Statistics Question Statistics

03/21/16

Which of the following survey methods should wholesome company use to make a valid conclusibout the percentage of students at Jefferson high school who like
Wholesome company has been hired to design a healthy menu for lunch at Jefferson high school. They want to conduct a survey to determine what percentage of Jefferson's 750 students like carrots.... more
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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

03/15/16

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

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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