Steele Industries has decided to use an R-Chart to monitor the changes in the variability of their 86.00 pound metal shafts. The production manager randomly samples 7 metal shafts and measures the weight of the sample (in pounds) at 18 successive time periods. Table Control Chart     Step 1 of 7 :  What is the Center Line of the control chart? Round your answer to three decimal places. What is the UCL? What is the LCL?

Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made the time period of January 1 to March 31. The table gives the defect and the number of defects. Do the data support the notion that each defect type occurs in the same proportion? Test at the 5% level. Number of Defective Lenses Defect type Number of defects Scratch 1866 Right shaped - small 1935 Flaked 1979 Wrong axis 1921 Chamfer wrong 1864 Crazing, cracks 1991 Wrong shape 2004 Wrong PD 1895 Spots and bubbles 1917 Wrong height 1885 Right shape - big 1875 Lost in lab 1886 Spots/bubble - intern 1935   State the hypotheses.H0: Each defect type     in the same proportion.Ha: Each defect type     in the same proportion. Calculate the χ2 test statistic. Round expected values to two decimal places. Round χ2 to three decimal places.χ2 =  Calculate the p-value. Round to four decimal places.p-value =  State your decision.Since p-value     0.05,…

Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find the percentile corresponding to the data speed 0.9 Mbps. Percentile of 0.9 equals  ​(Round to the nearest whole number as​ needed.)

Your assignment is to survey 10 people (friends, family, peers, etc.) and collect data for the following dependent measure: