A tyre manufacturer randomly samples 40 tyres at the end of each shift totest for tyres that are detective. The number of defectives in 12 shifts is as follows :2. 3,Construct a p-chart for this process. Is the production process under control ?4,2,0,5,14,2,3,4,12,3.

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Answered: A tyre manutacturer randomly samples 40…

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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To determine if their 14 oz filling machine is properly adjusted, Harvey Soft Drinks has decided to use an X-Chart which uses the range to estimate the variability in the sample. J. Answer How to enter your answ Table Step 1 of 7: What is the Center Line of the control chart? Round your answer to three decimal places. Control Chart Period 1 2 3 4 5 6 7 8 9 10 11 Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shift and arrow keys. To find the average of the selected cells, select the Average Values button. Copy Table Average Values The average of the selected cell(s) is 14.000. Copy Value Sample Mean Sample Range 14.0060 0.04 0.04 0.04 0.10 0.08 0.09 0.07 0.05 0.05 0.06 0.07 obs1 obs2 obs3 obs4 obs5 14.00 13.99 14.03 14.01 14.00 14.02 14.05 14.05 14.01 14.04 14.0340 14.02 14.01 14.05 14.04 14.02 14.0280 14.04 13.97 14.05 13.95 14.00 14.0020 13.96 14.01 14.00 14.04 14.02 14.0060 13.96 14.00 14.00…
Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 7 2 34 38 3 0 7 4 60 58 5 20 54 6 61 61 7 40 27 8 7 7 9 14 7 10 94 100 11 1 0 12 67 58 13 78 67 14 21 54 Specimen Direct Stratified 15 34 27 16 0 0 17 38 38 18 18 14 19 94 94 20 1 14 21 40 47 22 21 21 23 0 0 24 7 14 25 14 40 26 18 14 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…
Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). B, C, and D
You decide that you want to make sure your estimate from part a is correct. You go out and gather 10 simple random samples of 25 people in your school and calculate the proportion of students within each sample whose Amazon packages arrive within two business days of ordering. The proportion of customers that receive their packages within two days of ordering are given below. 0.70, 0.75, 0.6, 0.95, 0.90, 0.73, 0.87, 0.86, 0.92, 0.97 Explain why all of the sample proportions are not the same.
Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 6 2 32 38 3 0 6 4 60 58 5 20 52 6 61 61 7 40 26 8 6 6 9 12 6 10 92 100 11 1 0 12 66 58 13 78 66 14 21 52 Specimen Direct Stratified 15 32 26 16 0 0 17 38 38 18 18 12 19 92 92 20 1 12 21 40 46 22 21 21 23 0 0 24 6 12 25 12 40 26 18 12 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…
X, absences Y, final grade 4. The data below are the number of absences, x, and the final grades, y, of 9 randomly selected students from a MTH 119 class. Construct a scatterplot of the data. 0 99 4 58 7 51 5 82 9 71 geyerinstructional.com 3 92 16 55 1 5 76 5 82
To determine if their 1.50 inch steel handles are properly adjusted, Smith & Johnson Industries has decided to use an X-Chart which uses the range to estimate the variability in the sample. Step 1 of 7: What is the Center Line of the control chart? Round your answer to three decimal places. Table Period 1 2 Control Chart AnswerHow Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shi and arrow keys. To find the average of the selected cells, select the Average Values button. Copy Table 456789 Sample Mean Sample Range obs1 obs2 obs3 obs4 obs5 obs6 1.46 1.50 1.46 1.53 1.55 1.54 1.5067 1.54 1.45 1.49 1.4983 1.53 1.46 1.52 1.45 1.47 3 1.50 1.54 1.47 1.51 1.4900 1.53 1.47 1.50 1.53 1.5067 1.46 1.45 1.49 1.4850 1.51 1.5117 1.49 1.52 1.54 1.50 1.46 1.54 1.53 1.46 1.51 1.52 1.49 1.46 1.50 1.47 1.47 1.53 1.53 1.50 1.47 1.52 1.45 1.51 1.52 1.54 1.54 1.50 1.5050 1.5067 1.55 1.49 1.54 1.5083 1.51 1.54 1.5050 1.49…
N To determine if their 1.50 inch steel handles are properly adjusted, Smith & Johnson Industries has decided to use an X-Chart which uses the range to estimate the variability in the sample. Answe Step 2 of 7: What is the Upper Control Limit? Round your answer to three decimal places. Table 1 2 Control Chart Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shift and arrow keys. To find the average of the selected cells, select the Average Values button. Copy Table Average Values The average of the selected cell(s) is 1.460. Copy Value 34 Period obs1 obs2 obs3 obs4 obs5 obs6 Sample Mean Sample Range 1.46 1.50 1.46 1.53 1.55 1.54 1.5067 1.54 1.45 1.49 1.53 1.46 1.52 1.4983 1.50 1.54 1.47 1.51 1.45 1.47 1.4900 1.49 1.52 1.53 1.47 1.50 1.53 1.5067 5 1.46 1.45 1.49 1.4850 6 1.51 1.51 1.52 1.5117 7 1.53 1.50 1.47 1.54 1.5050 8 1.50 1.5067 1.54 1.50 1.47 1.46 1.54 1.53 1.53 1.46 1.51 1.52 1.50 1.47 1.54…

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A tyre manutacturer randomly samples 40 tyres at the end of each shift to test for tyres that are defective. The number of defectives in 12 shifts is as follows : 2. 3, Construct a p-chart for this process. Is the production process under control ? 4, 2, 0. 5, 14. 2, 3, 4, 12, 3.