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!
Calls to a customer service center last on average 1.8 minutes with a standard deviation of 1.5 minutes. An operator in the call center is required to answer 94 calls each day. Assume the call times are independent.
(a) What is the expected total amount of time in minutes the operator will spend on the calls each day? Give an exact answer.
(b) What is the standard deviation of the total amount of time in minutes the operator will spend on the calls each day? Give your answer to four decimal places.
(c) What is the approximate probability that the total time spent on the calls will be greater than 151 minutes? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
(d) What is the value c such that the approximate probability that the total time spent on the calls each day is less than c is 0.95? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
Find out correlation coefficient r, If student take 35 minutes to complete exam, what is his predicted score.
if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places.
A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share.
the teacher ratio is 125. currently the school district has 3150 students. if the student enrollment increases by 20
A candy confectioner measures the weight of 30 pieces of candy and obtains a mean and standard deviation of 32.5 gms and 2.6 gms, respectively. Construct the 98% confidence interval for the population mean.
1. a professor at a loca community noted that the grades of hi s students were normally distrubuted with a mean of 74
Perform the five-step hypothesis test on the data. - LORA - this is the portion I am responsible for based on using the nonparametric hypothesis testing.
What is the predicted blood pressure for an average 17 year old as estimated from the regression line? And the standard error of the estimate for a 17year old ?
question a large company is concerned about turnover so it commissions a survey that will be given to a random group of
At some point too much stimulation will limit the ability to focus and pay attention. What would happen to the size and the sign of the correlation coefficient if we correlated these two variables?
Illustrate what was the lowest score earned on the exam. Explain how many students scored within 3 standard deviations of the mean.
q1. out of a total of 120 musicians in a club 5 can play all the three instruments- guitar violin and flute. it so
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