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!
Solve the following Problem:
In a study designed to determine patients acceptance of a new pain reliever, 100 physicians each selected a sample of 25 patients to participate in the study. Each patient, after trying the new pain reliever for a specified period of time, was asked whether it was preferable to the pain reliever used regularly in the past. The results of the study are shown below. We are interested in determining whether or not these data are compatible with the hypothesis that they are draw from a population that follows a binomial distribution using chi-square goodness-of-fit test.
Number of patients out of 25 Number of doctors Total number of patients preferring preferring new pain reliever reporting this number new pain reliever by doctor
0 5 0
1 6 6
2 8 16
3 10 30
4 10 40
5 15 75
6 17 102
7 10 70
8 10 80
9 9 81
10 or more 0 0
Total 100 500
A GSS asked. "What do you think is the ideal number of children for a family to have? the 497 female who responded had a median of 2, mean of 3.02 and standard deviation of 1.81 (a) Report the point estimate of the population mean.
If the sample size (n) is large, and the sample is a random sample, then the distribution of the sample mean x-bar is approximately a:
The number of shark attacks and deaths over a recent 5- year period is shown. Find the mean, median, mode, midrange, variance, and standard deviation for the date. Which data set is more valuable?
Employer wishes to interview only those applicants who score in top 15%. What must cut-off score be for interviews?
Name three elements of the inferential statistical analysis.
Black Hole Pizza Parlor instructs its cooks to put a "handful" of cheese on each large pizza. A random sample of six such handfuls were weighed.
A new improved rocket launching system is being considered for short-range assault rockets. The requirement is that 80% of the rockets shall strike the target area at 800 meters. A sample of 36 experimental launches is made with 29 striking the ta..
A random sample of n = 4 scores is selected from a population with µ = 80 and σ = 20. On average, how much difference would you expect between the sample mean and the population mean?
Determine: SS(xy)Linear correlation coefficient, r. Bar graph below compares mean time in seconds for 7-yr old girls to complete certain task.
A study investigated the perception of corporate ethical values among individuals specializing in marketing. Using a=.05 and the following data (higher scores indicates higher ethical values) test for significant differences in perception among th..
Using Analysis of Variance (ANOVA) test at 5% level if there are important differences in mean sales calls made across the three branches.
If true explain and if false give an example. a. The significance level of a statistical test is equal to the probability that the null hypothesis is true. b. If the significance level of a test is decreased, the power of the test would be expected t..
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