A customer service company wants to know if their support agents are performing on par with industry standards. According to a report, the standard mean resolution time is 30 minutes per ticket. A sample of 15 were randomly chosen and found that the sample group has a mean at 25.1 minutes per ticket with a standard deviation of 9.8 minutes. Can you tell if the company's support performance is better than the industry standard or not? Test it at 1% level of significance. Calculate the value of the the appropriate test statistic for this test. Determine the tabulated critical value for this test. Only write the absolute value (without +/- sign) Determine the p-value for this test.

A customer service company wants to know if their support agents are performing on par with industry standards. According to a report, the standard mean resolution time is 30 minutes per ticket. A sample of 15 were randomly chosen and found that the sample group has a mean at 25.1 minutes per ticket with a standard deviation of 9.8 minutes. Can you tell if the company's support performance is better than the industry standard or not? Test it at 1% level of significance. Calculate the value of the the appropriate test statistic for this test. Determine the tabulated critical value for this test. Only write the absolute value (without +/- sign) Determine the p-value for this test.

Name: Problem 6A customer service company wants to know if their support ag
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Problem 6A customer service company wants to know if their support agents are performing on par with industry standards. According to a report, the standardmean resolution time is 30 minutes per ticket. A sample of 15 were randomly chosen and found

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The shelf life of a battery produced by one major company is known to be Normally distributed, with a mean life of 3.5 years and a standard deviation of 0.75 years. What is the upper quartile of battery shelf life? Use the fact that the middle 50% of the data falls within 0.67 standard deviations from the mean.
According to a recent report the battery life for a new line of laptop computers has a mean of 9 hours with a standard deviation of 2.4 hours. If battery life is normally distributed what percentage of new laptops will last between 8 and 11 hours on a single charge?
A researcher would like to estimate the mean amount of money that a family spends to within $75. If the amount spent by a family is considered to be normally distributed with a standard deviation of $412, what sample size would be necessary to be 93% confident?
A researcher wants to estimate the mean sleeping time of patients with sleep apnea. In a similar study, it was known that the population standard deviation is 1.8 hours. How many patients should be sampled to be 95% confident with the result accurate within 0.6 hours?
The admission committee of AUCA enrolls 39% of those who took the exam. If the scoresfollow a normal distribution with a mean of 630 and a standard deviation of 25, what isthe passing score?
Bone mineral density (BMD) is a measure of bone strength. Studies show that BMD declines after age 45. The impact of exercise may increase BMD. A random sample of 59 women between the ages of 41 and 45 with no major health problems were studied. The women were classified into one of two groups based upon their level of exercise activity: walking women and sedentary women. The 39 women who walked regularly had a mean BMD of 5.96 with a standard deviation of 1.22. The 20 women who are sedentary had a mean BMD of 4.41 with a standard deviation of 1.02. Which of the following inference procedures could be used to estimate the difference in the mean BMD for these two types of women
An industrial engineer is conducting a time study for a work element. The select time is 4.5 minutes, and the sample standard deviation of the observed time is 20 seconds. What is the appropriate sample size if the estimate is to be 5 percent of the true average time 95 percent of the time?
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose a random sample of 1077 people with mean amount of time spent eating and drinking per day is 1.09 hours with standard deviation of 0.52 hours, 95 percent confident rate
The number of orders received daily by an online vendor of used CDs is normally distributed with mean 260 and standard deviation 20. The company has to hire extra help or pay overtime on those days when the number of orders received is 310 or higher. What percentage of days will the company have to hire extra help or pay overtime? Click the icon to view the standard normal distribution table. The company will have to hire extra help or pay overtime on % of days.
The manager at a drive through has implemented a new process and wants to check if the new drive through process has a mean less than 188.83 seconds. The overall std. deviation of all the stores across the globe is 20 seconds. He has taken a sample of 39 and found the mean time to be 186.90 seconds. What does the hypothesis test lead to? Is there evidence to suggest the process has really improved?
A survey found that the mean commute time is 25.4 minutes for the fifteen largest U.S. cities.The Austin, TX, chamber of commerce feels that Austin's commute time is less. A survey of 25 randomly selected commuters had a mean of 22.1 minutes with a standard deviation of 5.3minutes. At the 10% level, does the survey data suggest that Austin commute time is significantly less than the national average?Your answer should have the following: 1). Significance Level: Alpha =2). Sample Size: n = 3). Sample X =
A researcher wants to estimate the mean sleeping time of patients with sleep apnea. In a similar study, it was known that the population standard deviation is 1.9 hours. How many patients should be sampled to be 90% confident with the result accurate within 0.5 hours?