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!
Free Response Question
In a study of the effectiveness of weight-loss programs, 47 subjects who were at least 20% overweight took part in a group support program for 10 weeks. Private weighings determined each subject's weight at the beginning of the program and 6 months after the program's end. The matched pairs t test was used to assess the significance of the average weight loss. The paper reporting the study said, "The subjects lost a significant amount of weight over time, t(46) = 4.68, P < 0.01."
a) Why was the matched-pairs t statistic appropriate?
b) ?Explain to someone who knows no statistics but is interested in weight-loss programs what the practical conclusion is.
c) ?The paper follows the tradition of reporting significance only at fixed levels such as = 0.01. In fact the results are more significant than "P < 0.01" suggests. What can you say about the P-value of the t test?
Using graph(s), shading, and appropriate probability distribution table, and assuming that the heights of women are normally distributed, with a mean
Coast-to-Coast Airlines is investigating the possibility of reducing the cost of fuel purchases by taking advantage of lower fuel costs in certain cities. Since fuel purchases represent a substantial portion of operating expenses for an airline, i..
Danny believes that the announcer is equally likely to name either George or Sam first if Danny himself is to be named the winner.
a panel of meteorological and civil engineers studying emergency evacuation plans for floridas gulf coast in the event
suppose that pa 0.4 and pacapb 0.12a find pbab are the events a and b mutually exclusive?if pb 0.3 are events a and
In May 2009, a GFK Roper poll asked Americans about their preferences about attending a wedding based on the food being served, given a set of choices.
suppose x is a normal random variable with expected value 7 and standard deviation 3. then calculate the following
In a sample of 50 members of a local health club you find that 12 of these members meet weekly with a physical fitness trainer and that the average body mass index (BMI) of these 12 members is less than the average BMI of the other 38 club members..
The dollar amount of damage involved in an automobile accident is an exponential random variable with mean 1000. Of this, the insurance company only pays that amount exceeding (the deductible amount of) 400.
With reference to Example 4, use the theory of Exercise 22 to test the null hypothesis α = 21.50 against the alternative hypothesis α 21.50 at the 0.01 level of significance.
What is the value of the test statistic (Zstat or z-sub-xbar)?
The 24-hour day has been divided into 7 segments of length 2, 4, or 8 hours. The minimum number of RN's required differs by time of day due to many factors; the minimum numbers of RN's required for each of the seven time segments are:
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