COB 300 Operations Actual Exam Newest 2026-2027

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COB 300 Operations Actual Exam Newest 2026-2027 Actual Exam With Complete Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+

If a customer service department is interested to know if variability of

customer wait time is in control, the appropriate tool for that would be: -

ANSWER-R chart

Fixing a problem often costs money. In order to minimize the overall

cost it is BEST to find and fix the problem: - ANSWER-during the

design phase

A quality analyst wants to construct a sample mean chart for a packaging process. He knows from past experience that whenever the process is in control, package weight is normally distributed with a mean of 20 ounces and a standard deviation of two ounces. Each day last week, he

randomly selected four packages and weighed each:

If he uses upper and lower control limits of 22 and 18 ounces, on what day(s), if any, does this process appear to be out of control? - ANSWER- Tuesday (average is out of the limits)

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In an X-bar chart plotting length of a machine part the lower control limit is 16.39 mm. From each batch of machine parts produced, samples of size 5 are collected. The average dispersion (average of ranges from each batch of samples) is 0.2 mm. What value does the center-line of X- bar chart have? - ANSWER-16.5054 mm

At the check-in counter of a hotel, the management likes to have a mean target customer processing time of 4.5 minutes +- 1.5 minutes tolerance.Data were collected and analyzed. It is found it is actually taking 5 minutes on an average per customer. The standard deviation customer processing time is 0.8 minute. What is the process capability index (Cpk)? - ANSWER-0.4167

At the check-in counter of a hotel, the management likes to have a mean target customer processing time of 4.5 minutes +- 1.5 minutes tolerance.Data were collected and analyzed. It is found it is actually taking 5 minutes on an average per customer. The standard deviation customer processing time is 0.8 minute.

What is the chance that processing time would be longer than 6 minutes?Use Z-chart (posted earlier). - ANSWER-0.1056

At the check-in counter of a hotel, the management likes to have a mean target customer processing time of 4.5 minutes +- 1.5 minutes tolerance.Data were collected and analyzed. It is found it is actually taking 5 minutes on an average per customer. The standard deviation customer processing time is 0.8 minute. 2 / 3

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What is the chance of processing time being in between 3 and 6 minutes? Use Z-Chart - ANSWER-0.8882

A plot below the lower control limit on the range chart:

(I) should be ignored since lower variation is desirable (II) may be an indication that process variation has decreased (III) should be investigated for assignable cause

Which of the following is true? Choose the single best answer. - ANSWER-II and III

Which of the following is NOT a determinant of effective capacity? - ANSWER-Actual output

A service provider with a design capacity of 3000 customers per day is observing utilization of 90%. The organization is targeting utilization of 80%. With this NEW utilization goal, what should be the NEW design capacity (in number of customers per day) assuming demand is unchanged? - ANSWER-3375

Many businesses selling products/services with high margins tend to increase capacity when they expect that in future they will have to

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