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!
An educational testing company has been using a standard test of verbal ability and the mean and standard deviation have been 430 and 130 respectively. in analyzing a new version of the test, it is found that a sample of 20 randomly selected subjects process a mean and standard deviation of 424 and 155 respectively. at the .05 level of significance, test the claim that the new version has standard deviation equal to that of the past version.
Assume that we know from previous studies that the population mean for minutes of exercise per week for college students is Uu= 100 with a standard deviation =25
What is the minimum sample size you should use to assure that your estimate of will be within the required margin of error around the population p?
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank-sum test, evaluate the significance of the results, assuming there are no ties.
Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection.
North Carolina State University looked at the factors that affect the success of students in a required chemical engineering course. Students must get a C or better in the course in order to continue as chemical engineering majors.
What test can be performed to compare the percentage of participants who developed abnormal triglyceride levels between the vitamin A group and the trace group? Implement the test in Problem 10.68, and report a two tailed p value.
A producer of pleasure boats wants to maximize revenue during the next month. Two types of boats are sold, x1 and x2. Type x1 sells for $40,000 and type x2 sells for $30,000.
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
Fast Service Store has maintained daily sales records on the various size 'Cool Drink' sales. These are shown in the following table:
The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons. Compute the probability that the steel mill will produce more than 150 metric tons next week.
The average score on the stat midterm was 75 points with a standard deviation of 5 points, and Gregor's z-score was -2. How many points did he score.
A faculty group wants to determine whether job rating (x) is a useful linear predictor of raise (y). Consequently, the group considered the linear regression model:
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