Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Can you explain how to get the standard deviation for this question. I got the mean 54.5
The following is a frequency distribution for the ages of a sample of employees at a local company.
Age Frequency
30 - 39 2
40 - 49 3
50 - 59 7
60 - 69 5
70 - 79 1
a. Determine the average age for the sample.
b. Compute the variance.
c. Compute the standard deviation.
d. Compute the coefficient of variation.
the following information is collected from students upon exiting the campus bookstore during the first week of
Why is it a contradiction to say that a firm is simultaneously earning an economic profit but suffering an accounting loss?
Let X be a random variable, with cumulative distribution function FX . Prove that P(X = a) = 0 if and only if the function FX is continuous at a.
some retail industry experts speculate that 25 of new customers who make purchases are generated from social media
The random sample of 20 ball bearings diameters X1 , X2 ,... , X20 , pos- tulated in Example 13.4 as being from a Gaussian distribution with μ = 10, resulted in an average measured diameter of x¯ = 9.86 mm, and a standard deviation s = 1.01 mm.
Find a 95% confidence interval for the population variance. (a) What is the level of significance?
Discuss potential explanations for the increase in median ROIC and the widening of the distribution of ROICs across all companies over recent decades.
Eynesbury: Quantitative Methods for Business 2016(1) Assignment. Make a histogram and obtain Descriptive Statistics, including Quartile 1 and Quartile 3, for gross cash sales and for gross credit card sales
When is a permutation test valid? You want to test the equality of the means of two populations. Sketch density curves for two populations for which a permutation test is valid but a t test is not.
What percentage of the money bet is used by the state to pay lottery expenses? What percentage is net revenue to the state?
question 1based on a survey of 1000 adults by greenfield online and resported in a may 2009 usa today snapshot adults
What are the degrees of freedom for sample variance for n=50, n=10, n=12, n=120, n= 75?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd