(Answered) Question create r and s charts for problem is the process

Statistics

Question: Create R and s charts for problem. Is the process in control?

Problem: Boston-based Legal Seafoods prides itself on having instituted an advanced quality control system that includes the control of both food quality and service quality. The following are successive service times at one of the chain's restaurants on a Saturday night in May 2007 (time is stated in minutes from customer entry to appearance of waitperson):

121, 122, 121, 125, 123, 121, 129, 123, 122, 122, 120, 121, 119, 118, 121, 125, 139, 150, 121, 122, 120, 123, 127, 123, 128, 129, 122, 120, 128, 120

Aggregate the data into groups of four, and construct a control chart for the process mean. Is the waiting time at the restaurant under control?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92518535
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Assume that the significance level is alpha equals alpha005

Assume that the significance level is alpha equals α=0.05. Use the given statement and find the? P-value and critical? value(s). The test statistic of z equals = -1.53 is obtained when testing the claim that p= 1/6 P-val ...

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

Kirk inc has come out with a new and improved product and

Kirk Inc. has come out with a new and improved product, and is expected to have an ROE of 14.4%. It will maintain a plowback ratio of 30%. Investors expect a 6.3% rate of return on the stock. (a) At what P/E ratio would ...

2 part questionpart 1 what do you think is the item that

2 part question: Part 1: What do you think is the item that accounts for the most cost in any hospital's budget? Can you outline ways to keep this cost under control? Part 2: Do think it is more difficult for a manager t ...

1 coal is carried from a mine in west virginia to a power

1. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 89 tons of coal into each car. The actual weights of coal loaded ...

A pharmaceutical company claims that the average cold lasts

A pharmaceutical company claims that the average cold lasts an average of 8.4 days. They are using this as a basis to test new medicines designed to shorten the length of colds. A random sample of 106 people with colds, ...

Thanks for starting our discussion on cash management if

Thanks for starting our discussion on Cash Management. If you think about it this comes down to speeding up collections of cash or slowing down disbursements of cash. Point out some strategies to accomplish it? Give refe ...

Determine the type of distribution for the following

Determine the type of distribution for the following situation: Draw marbles from a bag which contains 5 red marbles, 6 blue marbles and 4 green marbles with replacement until you get a blue marble. a) Binomial b) Pois ...

Assume a firm has 45 million in operating profit the firms

Assume a firm has $45 million in operating profit. The firm's tax rate is 40%. What is the tax shield of the firm's $38 million in debt that charges a 10% interest rate?

Tossing a fair coin three times whats the probability that

Tossing a fair coin three times, what's the probability that at least one head will occur?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert