Question: Data from service records show that the time to repair a certain machine is normally distributed with a mean of 65 min and a standard

Data from service records show that the time to repair a certain machine is normally distributed with a mean of 65 min and a standard deviation of 5 min. Estimate how often it will take more than 75 min to repair a machine.

Step by Step Solution

★★★★★

3.41 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Program plan To write a matlab code to find the per... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Introduction Mechanical Engineering Questions!

The lifetime of a certain manufacturers washing machine is normally distributed with mean 4 years. Only 15% of all these washing machines last at least 5 years. What is the standard deviation of the...

The fill volume of cans filled by a certain machine is normally distributed with mean 12.05 oz and standard deviation 0.03 oz. a. What proportion of cans contain less than 12 oz? b. The process mean...

Records show that the probability is 0.0012 that a person will get food poisoning spending a day at a certain state fair. Use the Poisson approximation to the binomial distribution to find the...

1.SCENARIO 9-2 A student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a...

1 of 20 5.0 Points Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The...

Please see attached. I need help! 1. (3 pt) A grocery store is interested in how much money. on average, their customers spend each visit in the produce department. Using their store records, they...

Problem 3 (25 points) Consider a manufacturing system comprising two different machines and two operators. Each operator is assigned to run a single machine. Parts arrive with a Truncated-Normally...

solve these practice problems Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65 and standard deviation .85 (suggested in...

MGMT3036 Operations Planning and Control QUESTION 1 The following is a BOM/product tree diagram for product A Sixty (60) units of the product are required in week 9. The beginning inventory for the...

Ony Ltd. is a leading name within the stair lifts industry, based in Kamloops, BC. Ony Ltd. has a strong reputation for customer care and quality of service. Ony Ltd. is committed to improving...

A solid-state temperature transducer is essentially a linear amplifier whose amplification is linearly temperature dependent. If the amplification is 25 times at 20oC and 60 times at 70oC, what is...

Pick the correct statement. A . Prequalfication is a lender's estimate of how much you can afford to borrow, based on your gross income and debts. B . Prequatification means that you have approval...

1. Discuss the applications of depth interviews and their advantages and disadvantages.

The block diagram of a speed control system is shown in Figure P12.6. For a particular system with proportional control, G1(s) = KP, the open-loop transfer function is G(s) = Kp / s (s + 2) With Kp =...

The block diagram of a position control system is shown in Figure P12.7. For a particular system with proportional control, G1 (s) = Kp, the open-loop transfer function is G (s) = 2.5Kp / s (s + 2)...

It is desired to control the angular displacement ( of a space vehicle by controlling the applied torque T supplied by thrusters (Figure PI2.8a). The plant model is Gp (s) = ( (s) / T (s) = 10 / s2...

Kathy is 60 years of age and self-employed. During the year (2015) she reported $100,000 of revenues and $40,000 of expenses relating to her self-employment activities. If Kathy has no other...

You are an equity analyst newly examining the financials of Titan Carpet Cleaners, and are examining measures of cash flow. The tax rate for the firm is 3 5 % , and the Payout Ratio is 1 5 % . You...

Flexibility options Gadget Twin Inc. is looking at investing in a production facility that will require an initial investment of $500,000. The facility will have a three-year useful life, and it will...