What is Normal? Give some examples of variables that would have an approximately normal distribution?

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orchestra answered 1 year ago

Many variables in medicine follow a normal distribution where there are approximately an equal number of...

Many variables in medicine follow a normal distribution where there are approximately an equal number of values below the mean as above the mean. Describe two variables that would probably follow a normal distribution. Also note which of the two variables would be likely to have a larger standard deviation and why. As an alternative question, what are some other potential probability distributions in the health care field such as bimodal, skewed, or exponential and give variables that would probably...

Give me a real-life example of a data distribution that youthink is approximately normal, but...

Give me a real-life example of a data distribution that you *think* is approximately normal, but with a large spread (i.e. large standard deviation). Use Google or other research methods to find the mean and standard deviation to support your claim. What reasons or conditions attribute to the large variation? Do some research, but do not give me a numerical example. a data distribution that you *think* is approximately normal, but with a very small spread (i.e. small standard deviation)....

Find an example of application of Normal Distribution (or approximately Normal Distribution) in your workplace or...

Find an example of application of Normal Distribution (or approximately Normal Distribution) in your workplace or business or any example of Normal Distribution. Prove that the variable has the characteristics of a Normal Distribution. Recall that the variable must be continuous and the distribution must be symmetrical (or approximately symmetrical). To prove that the distribution is approximately symmetrical select 20 random observations (measurements/data) of the variable and run a Descriptive Statistics using your calculator or Excel. Just copy the output...

The GPAs of all students enrolled at a large university have an approximately normal distribution with...

The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of 0.29 . Find the probability that the mean GPA of a random sample of 20 students selected from this university is 2.87 or lower. Round your answer to four decimal places. P ( x ¯ ≤ 2.87 ) = PLEASE SHOW WORK

The quantitative reasoning GRE scores are known to approximately have a Normal distribution with a mean...

The quantitative reasoning GRE scores are known to approximately have a Normal distribution with a mean of  = 151.3 points and a standard deviation of  = 8.7 points. a. Use the Empirical Rule to specify the ranges into which 68%, 95%, and 99.7% of test takers fall. Include a picture to illustrate the ranges. b. A graduate program in Public Policy Analysis admits only students with quantitative reasoning GRE scores in the top 30%. What is the lowest...

Give some examples of procurement strategies that have been used? What was good and what was...

Give some examples of procurement strategies that have been used? What was good and what was bad about them? Did the lessons learned make a difference at all? How? What would you have done differently and why?

4]The GPAs of all students enrolled at a large university have an approximately normal distribution with...

4]The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29. Find the probability that the mean GPA of a random sample of 20 students selected from this university is 2.93 to 3.11

The amounts of electricity bills for all households in a particular city have approximately normal distribution...

The amounts of electricity bills for all households in a particular city have approximately normal distribution with a mean of $140 and a standard deviation of $30. A researcher took random samples of 25 electricity bills for a certain study. a. Based on this information, what is the expected value of the mean of the sampling distribution of mean? b. What is the standard error of the sampling distribution of mean? c. If his one sample of 25 bills has...

Melons from a certain large distributor have diameters that follow an approximately normal distribution with a...

Melons from a certain large distributor have diameters that follow an approximately normal distribution with a mean of 133 millimeters (mm) and a standard deviation of 5 mm. a. If a melon from this distributor is randomly selected, calculate the probability that the melon will have a diameter that is greater than 137 mm. b. Calculate the diameter of a melon such that 15 percent of this distributor’s melons have a larger diameter. c. Suppose a customer randomly selects melons...

Given the shortcomings of the normal distribution in modeling some financial variables, why do you think...

Given the shortcomings of the normal distribution in modeling some financial variables, why do you think the normal distribution is still used? What are the advantages of its continued use in financial modeling? Are fund managers and others who use risk values based on the normal distribution acting responsibly? Why or why not?

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