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!
According with the IRS the taxpayers spent an average of 330 minutes in preparing, copying and to file in an electronic way the fiscal form 4020. An organization that watches over the consumers it selects a chance sample of 40 taxpayers and finds that the time needed to prepare, to copy and to file the form 4020 is 80 minutes.
a) Which is the standard error of the median in this example?
b) Which is the probability of that the median of the sample or average medians is greater or more than 320 minutes?
c) Which is the probability of that the median of the sample or average medians be between 320 and 350 minutes?
d) Which is the probability of that the average or median of the sample is greater than 350 minutes?
Is there evidence of difference in median performance between two methods? (Use α = 0.05.)
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
The Pearson Product-Moment Correlation Coefficient (r) is a measure of linear relationship between two variables.
IS there any evidence that a freshman's chances to graduate may depend upon what kind of high school the student attended? Describe.
If standard deviation is 50 hours and α is equal to 0.01, what values for mean x will result in rejection of null hypothesis.
The width of a confidence interval will be:
Give three logically possible directions of casualty, indicating for each direction whether it is a reasonable explanation for the correlation in light of the variables involved (and why).
the probability that a household is both prosperous and educated is P (A and B) = 0.082. What is the probability P (A or B) that the household selected is either prosperous or educated.
A sample of 160 workers in the downtown area classified each worker by race. A bar graph of the results is given below, but the bar for black workers in the graph below has been omitted.
Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
A test of hypothesis is conducted at the .05 level of significance to test either or not the population correlation is zero.
You have been given a report that presents two regression models with different numbers of independent variables. You do not have the data so you cannot re computed regression models. Nevertheless, you have been asked to find out which model is b..
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