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!
During a period of one month, a random sample of 27 approved life insurance policies is selected, and the processing time, in days, is recorded:
73 19 16 64 28 28 31 90 60 56 31
56 31 56 22 18 45 48 17 17 17 91
92 63 50 51 69 16 17
(a) In the past, the mean processing time was 45days.At the 0.05 level of significant, is there evidence that the mean processing time has changed from 45days?
(b) What assumption about the population distribution is needed in order to conduct the t test in (a)?
(c) Use a box plot to evaluate the assumption made in (b)?
(d) Do you think that the assumption needed in order to conduct the t test in (a) is valid? Explain
Estimate the true proportion of incomplete files for ALL the bank's commercial loans. Write a statement about the confidence level and the interval you find.
Is the transportation model the example of decision making under certainty or decision making under uncertainty? Provide the real-world example illustrtating why it is certainty or uncertainty.
The National Center for Health Statistics indicate that 29.9% of a sample of men and 0.5% of a sample of women are 6" or taller. Are these results generally consistent with your calculations?
The Consumer Price Index (CPI) and the cost of a slice of pizza
The accuracy of the scanner price of each. Let x represent the number of the five items that is priced incorrectly. Use the information in the FTC study to estimate p for the binomial experiment.
They are asked if they use a laptop in class to take notes. Suppose that based on the survey, 220 of the 400 students responded "yes". a) What is the value of the sample proportion ^p ? b) What is the standard error of the sample proportion?
Twenty single men were chosen at random and were asked if they would welcome a woman taking the initiative in asking for a date. What is the probability that seven (7) of the men say NO?
Find the P value or an interval containing the P value for the sample test statistic.
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools.
Test the claim that for the adult population of one town, the mean annual salary is given by μ = $30,000.
Now we are going to talk about continuous probability distributions. In a continuous probability distribution, the variable can have a value within a range.
the sample revealed a sample mean of 11.7 ounces with a standard deviation of .8 ounces test to see if the population mean is at least 12 ounces using the .05 level of significance.
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