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!
Question: In a survey of college students, 70% (.70) of the 100 women surveyed said that they believe in love at first sight, whereas only 40% (.40) of the 80 men surveyed said that they believe in love at first sight.
a. Find the value of the difference between the sample proportions for men and women.
b. Find the standard error of the difference between the sample proportions.
c. Find an approximate 95% confidence interval for the difference between population proportions believing in love at first sight for men versus women. (Use z* = 2)
d. On the basis of the confidence interval found in part (c), is it reasonable to conclude that there is a difference in the proportions of all college men and women who believe in love at first sight? Explain.
Generate another set of data from the same address list, this time with a 30% item nonresponse rate. (The nonresponse parameters are 0, .3, 0.)
Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation. Explain what your P-value means in this context.
Is there conclusive evidence that one of the proportions is significantly different from the other? Explain using the results of part a. Do not perform any test
The posted speed limit on Interstate 70 near Hays, KS is 75 miles per hour, but it is claimed that the mean of the actual speeds of vehicles is greater than 75 miles per hour. Describe the Type II error you could make if you test this claim throug..
Show that the characteristic function of Sn can be written as.- Use Taylor's theorem to write the characteristic function of the XK.
a study of 420039 cell phone users found that 131 of them developed cancer of the brain or nervous system. prior to
find an equation of the parabola that has the indicated vertex and whose graph passes through the given point. vertex
(a) State H0 and Ha. (b) Find the criticalvalue(s) and use it to determine the rejection region. (c) Find the standardized test statistic t.
determine if the demand and/or supply function is exactly identified, overidentified, or underidentified and give a graphical interpretation of your answer to part a.
the probability that a doctor correctly diagnose a particular illness is 0.7. given that the doctor makes an incorrect
Now suppose he says that if he is optimistic about the success of one project, he is likely to be optimistic about the others as well. For your simulation, this means that if one of the probabilities increases, the others also are likely to increa..
in basketball a players free throws percentage ft is expressed as a number between 0 and 1 which represents the
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