The process of being served at a bank consists of two parts—the time waiting in line...
The process of being served at a bank consists of two parts—the time waiting in line and the time it takes to be served by the teller. Suppose that the time waiting in line (X) has an expected value of 4.21 minutes, with a standard deviation of 1.1 minutes, the time it takes to be served by the teller (Y) has an expected value of 6.65 minutes, with a standard deviation of 1.32 minutes, and the correlation coefficient between the time waiting in line and the time it takes to be served is 0.51. What is the standard deviation of the total time (X+Y) it takes to be served at the bank?
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The process of being served at a bank consists of two parts—the
time waiting in line...
Customers arrive at a bank that has 1 teller and they wait in line on a...
Customers arrive at a bank that has 1 teller and they wait in line on a first-come, first-sorved basis. Customers arrive according to a Poisson process with a rate of 14.5 per hour. It takes on average 4 minutes for a customer to be served by the tellor. No customer leaves without going through service with the teller. The standard deviation of the service time is 2 minutes. What is the average time a customer spends waiting in line? (Enter...
The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows
The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.2 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of .05. Complete parts (a) through (d) below Compute the test statistic. Find the p-value.
The data table contains waiting times of customers at a bank, where customers enter a single...
The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.2 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of .05. Complete parts (a) through (d) below Compute the test statistic. Find the p value
4. When John enters the bank office, there are four customers waiting in line and one...
4. When John enters the bank office, there are four customers waiting in line and one customer is being served. There is a single clerk and the service time is exponentially distributed with λ-10 customer per hour, independent of everything else. (a) (2 points) What is the average service time per customer? (b) (4 points) What is the distribution of John's waiting time? (c) (4 points) Calculate the expected value and variance of John's waiting time. (d) (10 points) It...
The time it takes a bank teller to serve a customer is uniformly distributed between 2...
The time it takes a bank teller to serve a customer is uniformly distributed between 2 and 6 minutes. A customer has just stepped up to the window, and you are next in line. a. What is the expected time you will wait before it is your turn to be served? b. What is the probability that you wait less than 1 minute before being served? c. What is the probability that you wait between 3 and 5 minutes before...
A local bank claims that the waiting time for its customers to be served is the lowest in the area. A competitor bank checks the waiting times at both banks. The sample statistics are listed below. Us...
A local bank claims that the waiting time for its customers to be served is the lowest in the area. A competitor bank checks the waiting times at both banks. The sample statistics are listed below. Use P-values to test the local bank claim. Use a "alpha" = 0.05 Local Bank: n1= 45. x1= 5.3 minutes. s1= 1.1 minutes. Competitor bank: n2= 50. x2= 23. s2= 1.9.
4. When John enters the bank office, there are four customers waiting in line and one...
4. When John enters the bank office, there are four customers waiting in line and one g served. There is a single distributed with A10 customer per hour, independent of everything else. (a) (2 points) What is the average service time per customer? (b) (4 points) What is the distribution of John's waiting time? (c) (4 points) Calculate the expected value and variance of John's waiting time (d) (10 points) It has been 15 minutes and now John is the...
The waiting time until a customer is served at a fast food restaurant during lunch hours...
The waiting time until a customer is served at a fast food restaurant during lunch hours has a skewed distribution with a mean of 2.4 minutes and a standard deviation of 0.4 minute. Suppose that a random sample of 44 waiting times will be taken. Compute the probability that the mean waiting time for the sample will be longer than 2.5 minutes. Answer: (Round to 4 decimal places.)
A bank claims that the mean waiting time in line is less than 4.1 minutes. A...
A bank claims that the mean waiting time in line is less than 4.1 minutes. A random sample of 60 customers has a mean of 4 minutes. Assuming a population standard deviation of 0.6 minute, test the bank's claim with an ? = 0.05 level of confidence. ?0 = ___________________________________ ?? = ___________________________________ Test Statistic = __________________________ Alpha level of significance= __________________ Classical Critical Value = ____________________ P-value = _______________________________ ________Conclusion: A) reject ?0 B) fail to reject ?0 ________Interpretation:...
The data table contains waiting times of customers at a bank, where customers enter a single...
The
data table contains waiting times of customers at a bank, where
customers enter a single waiting line that feeds three teller
windows. Test the claim that the standard deviation of waiting
times is less than. 1.5 minutes, which is the standard deviation of
waiting times at the same bank when separate waiting lines are used
at each teller window. Use the significance level of 0.025.
Please help with part B and C
C.) find the P value
567-33211653832 676776678676766...
Customers arrive at a bank that has 1 teller and they wait in line on a first-come, first-sorved basis. Customers arrive according to a Poisson process with a rate of 14.5 per hour. It takes on average 4 minutes for a customer to be served by the tellor. No customer leaves without going through service with the teller. The standard deviation of the service time is 2 minutes. What is the average time a customer spends waiting in line? (Enter...
4. When John enters the bank office, there are four customers waiting in line and one customer is being served. There is a single clerk and the service time is exponentially distributed with λ-10 customer per hour, independent of everything else. (a) (2 points) What is the average service time per customer? (b) (4 points) What is the distribution of John's waiting time? (c) (4 points) Calculate the expected value and variance of John's waiting time. (d) (10 points) It...
4. When John enters the bank office, there are four customers waiting in line and one g served. There is a single distributed with A10 customer per hour, independent of everything else. (a) (2 points) What is the average service time per customer? (b) (4 points) What is the distribution of John's waiting time? (c) (4 points) Calculate the expected value and variance of John's waiting time (d) (10 points) It has been 15 minutes and now John is the...
The
data table contains waiting times of customers at a bank, where
customers enter a single waiting line that feeds three teller
windows. Test the claim that the standard deviation of waiting
times is less than. 1.5 minutes, which is the standard deviation of
waiting times at the same bank when separate waiting lines are used
at each teller window. Use the significance level of 0.025.
Please help with part B and C
C.) find the P value
567-33211653832 676776678676766...
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