Suppose you work in a textiles factory. You know that it's normal for machines to print an average of 12 flaws per bolt of fabric.But if there's something wrong with the machine, they will print more flaws; you use this fact to determine if a machine needs tobe fixed. Fixing a machine is always a time consuming process--it can require two hours just to take the machine apart to inspectit--so you only fix them if you really think there's something wrong.A machine just printed 15 flaws on a bolt of fabric. Using the appropriate distribution function in Excel, determine the chance thatthis is just a coincidence and the machine is working fine? Express your answer as a decimal to four places. Include a zerobefore the decimal point.

A discrete random variable X is said to follow Poisson distribution with parameter λ, if its…

Answered: Suppose you work in a textiles factory.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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3. Tamir has recently begun a new job of selling custom bracelets! Tamir's sales have been growing every week and now he is looking to analyze his profit. Specifically, Tamir is looking to find how much his cost of goods is for his business of selling bracelets. Luckily, Tamir sells each bracelet for the same price and has recorded that when he sold 4 bracelets he made a $39 profit, when he sold 9 bracelets he made a $94 profit. a. Write an equation in point slope form that could model this scenario. b. Which of the following could be the graph of Tamir's profit? Explain how you know. Graph 1: Graph 2: + +
#2) If a Kevlar fabric company can produce 40,362.7 square yards per year for bullet proof vests and the financial profit per square yard is $37.00, how much money does the company profit each second the business is in operation (assuming they are constantly producing Kevlar 24 hours every day, use 365 days in one year)? Clearly show all work. Report answer to 3 sig figs.
If a biker travels 33 miles in 3 hours, can you guarantee that the bike's speedometer must have read 11 mph at least once during the trip? Can you guarantee it will read 8 mph at least once during the trip? Can you guarantee it will read at least 14 mph? Support your conclusions mathematically.
Parent W requires one of component B and two of component C. Both B and Care run on work center 10. Setup time for B is 2 hours, and run time is 0.1 hour perpiece. For component C, setup time is 2 hours, and run time is 0.15 hour per piece. Ifthe rated capacity of the work center is 80 hours, how many Ws should be producedin a week?
A researcher thinks some social media sites are more prone to narcissistic behavior (excessive posting) than others. To examine the relationship between narcissism and social media, she recruits users of three different social media sites (Facebook, Twitter and Instagram), follows them for 24 hours and records the number of posts made by each user. The number of posts is given in the table below. Twitter Facebook Instagram 10 7 14 10 8. 10 10 10 11 9. www. 12 wwww. 11 13 12 8. 7 8. 11 8 10 12 11 11 a. Perform a complete hypothesis test to determine whether there are any significant differences among the three groups. Test at the .05 level of significance. SHOW ALL YOUR WORK b. Do you need to perform post hocs? Explain but do not compute the post hocs. C. Compute effect size. d. Summarize your findings in a source table. e. Write an interpretation of our results in APA-format (include means and SDs in your interpretation)
4. A company has a total of 500 light bulbs that are 100 watts each. The cost for electricity is 0.18 cents per kilowatt-hour. If all the bulbs are on 24 hours a day for 30 days, how much will the cost be?
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Step 3: Assess the Evidence (Calculate the test statistic for the observed sample mean. Sketch the T-distribution and identify the position of the observed test statistic. Shade the area that represents the P-value. Use the test statistic to find the P-value.)
5 Imagine that a company sells portable walkie-talkie radios to construction crews. The batteries for these radios last for an average of 55 hours. The purchasing manager for this company receives a brochure in the mail that advertises a new brand of batteries. This new brand of batteries is cheaper than the brand that the company currently uses. However, the purchasing manager is concerned that the cheaper batteries may have a shorter average battery life than the current brand. (Note: The number of hours that batteries last is called their battery life.) The pricing manager installs 40 randomly selected batteries of the cheaper brand in the company's walkie-talkie radios. He finds that the mean battery life for the sample is 52 hours, with a standard deviation of 10 hours. He wants to perform a statistical test at the 1% level of significance to determine whether the cheaper batteries have a shorter average battery life span than the average life span of the brand of batteries the…
2. Suppose a bacteria sample contains 1000 bacteria. 6 hours later, there are 2400 bacteria. Find how long it would take until the sample has 10,000 bacteria.
The maximum patent life for a new drug is 17 years. Subtracting the length of time required by the FDA for testing and approval of the drug provides the actual patent life of the drug-that is, the length of time that a company has to recover research and development costs and make a profit. Suppose the distribution of the lengths of patent life for new drugs is as shown here. Years, x 3 4 5 6 7 8 9 10 0.03 0.07 0.07 0.12 0.18 0.15 0.19 0.10 0.05 0.03 0.01 11 12 13 p(x) (a) Find the expected number of years of patent life for a new drug. 9.55 (b) Find the standard deviation of x. (Round your answer to four decimal places.) (c) Find the probability that x falls into the interval p + 20. Need Help? Read It

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