A customer service representative must spend different amounts of time with each customer to resolve various...
A customer service representative must spend different amounts of time with each customer to resolve various concerns. The amount of time spent with each customer can be modeled by the following distribution: X ~ Exp(0.7)
Find μ. Round to nearest tenths.
a. 4.2
b.2
c.1.4
d. 2.1
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A customer service representative must spend different amounts
of time with each customer to resolve various...
1. A customer service representative must spend different amounts of time with each customer to resolve...
1. A customer service representative must spend different amounts of time with each customer to resolve various concerns. The amount of time spent with each customer can be modeled by the following distribution: X ~ Exp(0.2) Find median. Round to the nearest a. 3.5 b. 7 c. 5 d. 2.5 2. Suppose you arrive into a building and are about to take an elevator to the your floor. Once you call the elevator, it will take between 2 and 40...
1. A customer service representative must spend different amounts of time with each customer to resolve...
1. A customer service representative must spend different amounts of time with each customer to resolve various concerns. The amount of time spent with each customer can be modeled by the following distribution: X ~ Exp(0.2) Find P(x > 4) a. 0.225 b. 0.449 c. 0.551 d. 0.635 2. At an urgent care facility, patients arrive at an average rate of one patient every seven minutes. Assume that the duration between arrivals is exponentially distributed. Find the probability that the...
The amount of time required to reach a customer service representative has a huge impact on...
The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. A study was conducted to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels. Two samples of data were collected (see below). Assume that the population variances in the amount of time for the two hotels are not equal. Hotel 1 Hotel 2 Mean 2.214 2.0115 Variance...
The amount of time required to reach a customer service representative has a huge impact on...
The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels. Assume that the population variances in the amount of time for the two hotels are not equal. t-Test: Two-sample assuming Unequal Variances Hotel 1 Hotel 2 Mean 2.95 2.01...
The customer service center in a department store has determined that the amount of time spent...
The customer service center in a department store has determined that the amount of time spent with a customer about a complaint is normally distributed with a mean of 9.3 minutes and a standard deviation of 2.5 minutes. a. What is the z-value that corresponds to x =10 minutes. b. What is the z-value that corresponds to x =5 minutes c. what is the x-value that corresponds to z = 1.12? Round answer to the nearest whole number.
In order to estimate the mean amount of time computer users spend on the internet each...
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be surveyed in order to be 90% confident that your sample mean is within 15 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 224 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
In order to estimate the mean amount of time computer users spend on the internet each...
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be surveyed in order to be 95% confident that your sample mean is within 11 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 200 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
The manager of a bank recorded the amount of time each customer spent waiting in line...
The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the standard deviation. Round your answer to one decimal place. Waiting time Number of (minutes) customer 0-under 4 16 4-under 8 12 8-under 12 9 12-under 16 10 16-under 20 0 20-under 24 3 6.0 5.7 7.0 5.4
Will must make quarterly estimated income tax payments to the Internal Revenue Service. The amounts and...
Will must make quarterly estimated income tax payments to the Internal Revenue Service. The amounts and timing of these payments are shown below. Also shown are the monthly interest rates that apply to each interval of time. What is the P-equivalent of Will's payments on January 15? Jan. 15 April 15 June 15 Sept. 15 i= 1/4% i=112% ;= 3/4% mo. mo. mo. $8,000 $10,000 $11,000 $8,000 The P-equivalent of Will's payments on January 15 is $ . (Round to...
The amount of time adults spend watching television is closely monitored by firms because this helps...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? O A. The variable "weekly time spent watching television" is likely normally distributed. OB. The variable "weekly time spent watching television" is likely skewed right, not normally...
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be surveyed in order to be 90% confident that your sample mean is within 15 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 224 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the standard deviation. Round your answer to one decimal place. Waiting time Number of (minutes) customer 0-under 4 16 4-under 8 12 8-under 12 9 12-under 16 10 16-under 20 0 20-under 24 3 6.0 5.7 7.0 5.4
Will must make quarterly estimated income tax payments to the Internal Revenue Service. The amounts and timing of these payments are shown below. Also shown are the monthly interest rates that apply to each interval of time. What is the P-equivalent of Will's payments on January 15? Jan. 15 April 15 June 15 Sept. 15 i= 1/4% i=112% ;= 3/4% mo. mo. mo. $8,000 $10,000 $11,000 $8,000 The P-equivalent of Will's payments on January 15 is $ . (Round to...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? O A. The variable "weekly time spent watching television" is likely normally distributed. OB. The variable "weekly time spent watching television" is likely skewed right, not normally...
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