Question

When do we use a mean and SD to define a continuous variable distribution ? When...

When do we use a mean and SD to define a continuous variable distribution ? When do we use a median and IQR to define a continuous variable distribution?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Examine the distribution of the total cholesterol variable. Would the five number summary or mean/SD be...
Examine the distribution of the total cholesterol variable. Would the five number summary or mean/SD be more appropriate to report?    Neither is appropriate   Both would be appropriate    Mean/SD    Five number summary
The following summary statistics were calculated for a continuous variable in a particular data set; n=10,...
The following summary statistics were calculated for a continuous variable in a particular data set; n=10, mean=8.90, sd=9.69, median=6.105, min=0.512, max=39.92, Q1=1.967, Q3=8.103. Would it be appropriate to use the Student’s t distribution to construct a confidence interval for the population mean from these data? i) yes; or ii) no; or iii) possibly, following a suitable transformation?
Answer the following questions. (a) Why do we need to use the t-distribution when estimating the...
Answer the following questions. (a) Why do we need to use the t-distribution when estimating the population mean? (b) Name a circumstance where we would not need to use the t-distribution when estimating the population mean?
1. For which type of continuous distribution are the mean and the median always the same?...
1. For which type of continuous distribution are the mean and the median always the same? uniform and normal distributions only all of the above uniform distribution exponential distribution normal distribution 2. The skewness of a normal distribution is: negative zero positive something that varies 3. The standard normal probability distribution has a mean of ______ and a standard deviation of ______. 0, 1 1, 0 1, 1 0, 0 4. Any normal probability distribution can be converted to a...
We use Student’s t distribution when creating confidence intervals for the mean when the population standard...
We use Student’s t distribution when creating confidence intervals for the mean when the population standard deviation is unknown because.... We are estimating two parameters from the data and wish to have a wider confidence interval The central limit theorem does not apply in this case We do not want a confidence interval that is symmetric about the sample mean We have greater certainty of our estimate
Define, or provide and example of, the mode of a distribution. Define, or provide and example...
Define, or provide and example of, the mode of a distribution. Define, or provide and example of, the mean of a distribution. Define, or provide and example of, the median of a distribution.
When doing a descriptive analysis for continuous variable, which measures are most commonly used: -a measure...
When doing a descriptive analysis for continuous variable, which measures are most commonly used: -a measure of central tendency (mean or median) -a count of how many people selected each response option (frequency) -a measure of dispersion (standard deviation) -all of the above -1 & 3 What is the most important reason we do data analysis for marketing? -to impress our bosses -to help improve manager's decision quality -to turn data into information -to increase the visual impact of our...
A continuous random variable Z follows standard normal distribution. a) What is the mean of Z?...
A continuous random variable Z follows standard normal distribution. a) What is the mean of Z? b) What is the standard deviation of Z? c) Z=(x-10)/5 What is the distribution of X ?
Explain: What do we mean when we ask the question: What is your research “hypothesis”? i.e.,...
Explain: What do we mean when we ask the question: What is your research “hypothesis”? i.e., define hypothesis from this perspective and how does this differ from how we use the word “hypothesis” when we test “null hypotheses” in a statistical analysis?
This week, we are studying a type of continuous probability distribution that is called a normal...
This week, we are studying a type of continuous probability distribution that is called a normal distribution. One real-life example of a normal distribution is IQ score. The mean of this distribution is 100 with a standard deviation of 15. For this week's discussion, do a little research and share another real life example of a normal distribution, including information about the mean and standard deviation. Post a diagram to share with the class.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT