You are the newly appointed assistant administrator at a local hospital, and your first project is to investigate the quality of the patientmeals put out by the food-service department. You conducted a 10-day survey by submitting a simple questionnaire to the 400patients with each meal, asking that they simply check off that the meal was either satisfactory or unsatisfactory. For simplicity in thisproblem, assume that the response was 1,000 returned questionnaires from the 1,200 meals each day. The results are as follows:NUMBER OFUNSATISFACTORYSAMPLEMEALSSIZEDecember 1831,000December 2641,000December 3531,000December 4591,000December 5741,000December 6801,000December 7611,000December 8491,000December 9.841,000December 10581,00066510,000 a. Determine the ē, Sp, UCL and LCL based on the questionnaire results, using a confidence interval of 95.5 percent, which is twostandard deviationsNote: Round your answers to 4 decimal places.p barSpUCLLCLb. What comments can you make about the process?The process is out of statistical control.O The process is in statistical control.

Determine the p bar, S_p, UCL, LCL, based on the questionnaire results, using confidence interval…

Answered: You are the newly appointed assistant…

Understanding Business

12th Edition

ISBN:9781259929434

Author:William Nickels

Publisher:William Nickels

Chapter1: Taking Risks And Making Profits Within The Dynamic Business Environment

Section: Chapter Questions

Problem 1CE

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Similar questions

An market researcher is conducting customer satisfaction surveys for a national restaurant chain with 200 restaurant. The researcher randomly selects a sample 10 of the restaurants and interviews all customers over a two-day period. What sampling technique was used?
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 438.0 gram setting. It is believed that the machine is underfilling the bags. A 46 bag sample had a mean of 436.0 grams. A level of significance of 0.05 will be used. Determine the decision rule. Assume the variance is known to be 400.00. Enter the decision rule.
A manufacturing company produces steel rods. The length of these rods is critical to their customers. The company aims to manufacture rods with a mean length of 150 cm. However, due to variability in the manufacturing process, the lengths of the rods follow a normal distribution. The company's quality control department samples 30 rods and finds that they have a mean length of 151 cm and a standard deviation of 2 cm. Calculate the Process Capability Index (Cp) and the Process Performance Index (Ppk) for this process. Assume the customer's specification limits are 147 cm and 153 cm for the length of the rods.
A car manufacturer buys brakes from a supplier. The data was provided by the supplier for the car manufacturer to set up a control chart to manage the irregularities. What is the LCL and UCL for 99.7% confidence? Sample 1 2 3 4 5 6 7 8 9 10 Irregularities 2 4 7 3 3 6 5 2 3 4
Which of the following involves a test of two-related samples? Multiple Choice Test of whether the mean salary of professors at Metro University is higher than the national average for university professors Test of differences in the percent of men and women who are or are not members of Greek organizations on campus Test of whether a change occurred in the proneness for heart disease among people who switched to a diet high in fish Test of the average incomes of subscribers of Southern Living and Better Homes and Gardens Test of differences in ad recall among three experimental groups (each of which saw a different advertisement) and a control group
Please do not give solution in image formate thanku. Jim Corner, owner of Corner Bike Rentals, wants to start analyzing his company's quality. For each bike rental, there are four types of customer complaints:(1) bike not working properly, (2) wrong bike size, (3) bike uncomfortable, and (4) bike broken during operation. During the past week, his company rented 280 bikes. He received a total of twenty-six complaints If Jim wanted to operate at the five-sigma level, what would his errors have needed to be over the past week?
A metal fabricator produces connecting rods with an outer diameter that has a 1± 0.02 inch specification. A machine operator takes several sample measurements over time and determines the sample mean outer diameter to be 1.005 inches with a standard deviation of 0.003 inch. Calculate the process capability index for this example. Note: Round your answer to 3 decimal places. Process capability index
The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level that the drug stays in the system for less than 368 minutes. For a sample of 78 patients, the mean time the drug stayed in the system was 363 minutes. Assume the variance is known to be 529. State the null and alternative hypotheses for the above scenario.
Define random sampling error and non samling error, two major type of non sampling error.
Using traditional methods, it takes 101 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 100 students and observed that they had a mean of 102 hours. Assume the variance is known to be 16. A level of significance of 0.05 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places. Enter the value of the test statistic.
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