The time in seconds it takes for 20 individual sewing machines to stitch a border onto a particular garment is listed below. Calculate the mean stitching time, the variance, and the standard deviation. (Round the "mean time" and "variance" to the nearest tenth and "standard deviation" to the nearest hundredth.) 66 64 69 53 61 60 64 73 66 56 58 61 58 55 59 74 62 60 50 62 Mean time Variance Standard deviation

The time in seconds it takes for 20 individual sewing machines to stitch a border onto a particular garment is listed below. Calculate the mean stitching time, the variance, and the standard deviation. (Round the "mean time" and "variance" to the nearest tenth and "standard deviation" to the nearest hundredth.) 66 64 69 53 61 60 64 73 66 56 58 61 58 55 59 74 62 60 50 62 Mean time Variance Standard deviation

Essentials of Business Analytics (MindTap Course List)

2nd Edition

ISBN:9781305627734

Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Chapter5: Probability: An Introduction To Modeling Uncertainty

Section: Chapter Questions

Problem 33P: Suppose that Motorola uses the normal distribution to determine the probability of defects and the...

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28 Total sleep time of college students. In Example 4, the total sleep time per night among college students was approximately Normally distributed with mean u = 6.78 hours and standard deviation o = 1.24 hours. You plan to %3D %3D take an SRS of size n = 120 and compute the average total %3D sleep time. (a) What is the standard deviation for the average time? (b) Use the 95 part of the 68-95-99.7 rule to describe the variability of this sample mean. (c) What is the probability that your average will be below 6.9 hours?
Question is correct so Fast pls solve this question correctly in 2 min pls I will give u like for sure Mnty C(x)=0.08x+11.75 What is the total cost for an order of 20 copies?
Here are the scores on the first exam in an introductory statistics course for 10 students: First exam score 75 87 94 85 74 98 93 52 80 91 Click to download the data in your preferred format. CSV Excel JMP Mac-Text Minitab PC-Text R SPSS TI CrunchIt! Find the variance and the standard deviation for these first-exam scores. Give your answers to one decimal place.
Savee Assume the following information: Hours Queue time Wait time 40 24 2. 2. Process time Move time Inspection time 4. The monufocturing cycle efficiency (MCE) is closest to: Multiple Cholce 0.24 0.40. 0.02 0.04.
Laboratory Exercise No. 18 Filename: Lab_exer18 A mobile phone store wants you to create a simple application. The program will start by asking the brand of the phone. The user will then enter 10 different prices of that phone for the past months. From the prices entered, be able to count the number of price that is more than 100. Determine also the average price of all the amount. Sample output: Enter price 1 120 Enter price 2 : 50 Enter price 3 75 Enter price 4 : 105 Enter price 5 35 Enter price 6 : Enter price 7 : Enter price 8 : 20 80 115 Enter price 9 : 50 Enter price 10 : 75 Number of prices that is more than 100 : 2 Average of all prices : 72.5
Refer to the information for Farnsworth Company (p. 139) for the first 10 months of data on receiving orders and receiving cost. Now suppose that Tracy has gathered 2 more months of data: Note: For the following requirements, round the intercept terms to the nearest dollar, round the variable rates to the nearest cent, and R2 to two decimal places. Required: 1. Run two regressions using a computer spreadsheet program such as Excel. First, use the method of least squares on the first 10 months of data. Then, use the method of least squares on all 12 months of data. Write down the results for the intercept, slope, and R2 for each regression. Compare the results. 2. CONCEPTUAL CONNECTION Prepare a scattergraph using all 12 months of data. Do any points appear to be outliers? Suppose Tracy has learned that the factory suffered severe storm damage during Month 11 that required extensive repairs to the receiving areaincluding major repairs on a forklift. These expenses, included in Month 11 receiving costs, are not expected to recur. What step might Tracy, using her judgment, take to amend the results from the method of least squares? 3. CONCEPTUAL CONNECTION Rerun the method of least squares, using all the data except for Month 11. (You should now have 11 months of data.) Prepare a cost formula for receiving based on these results, and calculate the predicted receiving cost for a month with 1,450 receiving orders. Discuss the results from this regression versus those from the regression for 12 months of data.
8 The following data are average times per order over the last month. Wait time to start production Inspection time 16.2 days 1.8 days Process time 2.7 days Move time 2.6 days Queue time 8.2 days The manufacturing cycle efficiency (MCE) would be closest to: А. 29%. В. 82%. С. 46%. D. 18%. Е. None of the above
45. Minutes. I already bought bartlet I hope u can help me to answer this activity of mine.1 Engineering Economic > ECONOMICS
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The following time series shows the sales of a particular product over the past 12 months. Construct a time series plot. What type of pattern exists in the data? Use α = 0.3 to compute the exponential smoothing values for the time series. Use trial and error to find a value of the exponential smoothing coefficient α that results in a relatively small MSE.
A customer service department has the following resolution response time data: Average Response Time First contact Service scheduling Wait for service Service 0.25 hr. 0.50 hr. 24.00 hrs. 1.50 hrs. 26.25 hrs. Total resolution time What is the value-added ratio (rounded to one decimal place) in this process? Oa. 8.6% Ob. 91.4% Oc. 28.6% Od. 5.7%
Q2: A PI controller has K, 2.0, K2.2 s¹, and pi(0)=40%. Calculate the output for an error given by fig. 3 ep (%) -2 Fig. 3 Figure I (seconds)