Question

In: Math

A customer service phone line claims that the wait times before a call is answered by...

A customer service phone line claims that the wait times before a call is answered by a service representative is less than 3.3 minutes. In a random sample of 62 calls, the average wait time before a representative answers is 3.24 minutes. The population standard deviation is assumed to be 0.40 minutes. Can the claim be supported at α=0.08?

Solutions

Expert Solution

milcah answered 1 year ago
Next > < Previous

Related Solutions

A customer service phone line claims that the wait times before a call is answered by...
A customer service phone line claims that the wait times before a call is answered by a service representative is less than 3.3 minutes. In a random sample of 62 calls, the average wait time before a representative answers is 3.26 minutes. The population standard deviation is assumed to be 0.14 minutes. Can the claim be supported at α=0.08? No, since test statistic is not in the rejection region defined by the critical value, reject the null. The claim is...
Suppose a retailer claims that the average wait time for a customer on its support line...
Suppose a retailer claims that the average wait time for a customer on its support line is 173 seconds. A random sample of 56 customers had an average wait time of 164 seconds. Assume the population standard deviation for wait time is 50 seconds. Using a 95​% confidence​ interval, does this sample support the​ retailer's claim? Using a 95​% confidence​ interval, does this sample support the​ retailer's claim? Select the correct choice​ below, and fill in the answer boxes to...
A critical dimension of the service quality of a call center is the wait time of...
A critical dimension of the service quality of a call center is the wait time of a caller to get to a sales representative. Periodically, random samples of three customer calls are measured for time. The results of the last four samples are in the following table: Sample Time (Sec) 1 495 501 498 2 512 508 504 3 505 497 501 4 496 503 492 Suppose that the standard deviation of the process distribution is 5.77. If the specifications...
Given below is simple random sample data for wait times, in minutes, for a call center....
Given below is simple random sample data for wait times, in minutes, for a call center. At the 98% confidence level, calculate the confidence interval estimate for the variance in wait time for the population of all calls at the call center. Assume the population is normally distributed. 12.1 11.5 13.4 16.2 11.3 12.2 11.3
A customer service department asks its customers to rate their​ over-the-phone service on a scale of​...
A customer service department asks its customers to rate their​ over-the-phone service on a scale of​ 1-20 immediately after their service has been completed. The department then matches each​ customer's rating with the number of minutes the person waited on hold. The accompanying table shows the ratings and number of minutes on hold for 10 randomly selected customers. The regression line for the data is (^ is above the Y) Y=16.85-0.15x. Use this information to complete parts a through d....
A call center randomly selects and records customer calls. Call handling times in minutes for 20...
A call center randomly selects and records customer calls. Call handling times in minutes for 20 calls are as follows: 6, 26, 8, 2, 6, 3, 10, 14, 4, 5, 3, 17, 9, 8, 9, 5, 3, 28, 21, and 4. Please calculate the 10th quartile, 90th quartile, median, Q1, Q3, sample mean, and sample standard deviation of call handling times.
A Problem with a phone line that prevents a customer from receiving or making calls is...
A Problem with a phone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telecommunications company. Samples of 20 problems reported to two different offices of a telecommunications company and the time to clear those problems (in minutes) from the customers’ lines. Data summary table: Problem 1 data Mean 1 2.21 Mean 2 2.01 Std. Dev. 1 1.72 Std. Dev. 2 1.89 Using the output below answer the answer the flowing...
A problem with a phone line that prevents a customer from receiving or making calls is...
A problem with a phone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telecommunications company. The file Phone contains samples of 20 problems reported to two different offices of a telecommunications company and the time to clear these problems (in minutes) from the customers’ lines: Central Office I Time to Clear Problems (minutes) 1.48 1.75 0.78 2.85 0.52 1.60 4.15 3.97 1.48 3.10 1.02 0.53 0.93 1.60 0.80 1.05 6.32...
A problem with a phone line that prevents a customer from receiving or making calls is...
A problem with a phone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telecommunications company. The file Phone contains samples of 20 problems reported to two different offices of a telecommunications company and the time to clear these problems (in minutes) from the customers' lines: Central Office I Time to Clear Problems (minutes) 1.48 1.75 0.78 2.85 0.52 1.60 4.15 3.97 1.48 3.10 1.02 0.53 0.93 1.60 0.80 1.05 6.32...
A problem with a phone line that prevents a customer from receiving or making calls is...
A problem with a phone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telecommunications company. Table 4 contains samples of 20 problems reported to two different offices of a telecommunications company and the time to clear these problems (in minutes) from the customers’ lines:   Central Office I Time to Clear Problems (minutes): 1.48 1.75 0.78 2.85 0.52 1.60 4.15 3.97 1.48 3.10 1.02 0.53 0.93 1.60 0.80 1.05 6.32 3.93...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT