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Statistical Quality Control

Tuesday, 21 February 2017 by

The number of “near misses” recorded for the last 20 months at the Lima Intl Airport is 3,2,3,2,2,3,5,1,2,2,4,4,2,6,3,5,2,5,1, 3. Develop an appropriate control chart . Determine the mean number of misses per month and the limits on the number of misses per month. Show all your work/calculations . Are their any months where the number

Large Mass Ratios

Tuesday, 21 February 2017 by

How high will the fourth ball bounce if a stack of 4 balls is dropped from a height of 5 feet? Assume the usual perfectly resilient balls and large mass ratios.

Distance Travelled

Tuesday, 21 February 2017 by

A ball bounces 1/2 its height each bounce. It is dropped from a height of one foot. a) How many times does it bounce? b) How far does it bounce? c)How long does it bounce? Does it ever come to rest?

Please see the attached file for the fully formatted problems. A. 100 lengths of steel bar were measured and their lengths In centimetres (cm) are given in the table labelled Item 36 on your worksheet. i) Plot a histogram of the data provided. ii) Calculate forthe data: a) The arithmetic mean length. (Show all working).

Comparison of two populations

Tuesday, 21 February 2017 by

A seven year old study reported that women whose mothers used the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as women whose mothers did not take the the drug. a. This study involved the comparison of two populations. What were the populations? b. Do you

Primary share earnings

Tuesday, 21 February 2017 by

67. The following data show that trailing 52 week primary share earnings and books values as reported by 10 companies(the wall Street Journal, March 13/2000). Company -Earnings-Book Value Am Elec -25.21 -2.69 Columbia En -23.20 -3.01 Con Ed -25.19 -3.13 Duke Energy -20.17 -2.25 Edison Int’l -13.55 -1.79 Enron Cp. -7.44 -1.27 Peco -13.61 -3.15

Quantitative Variables

Tuesday, 21 February 2017 by

Suppose you are an appraiser for homes in a metropolitan area. Discuss two quantitative variables and two qualitative variables that would apply.


Tuesday, 21 February 2017 by

Problem: P that temperature is between -1.36 and 3.56 with a mean of 0 and a standard deviation of 1.

Only for above list Blood groups and Rh types of 100 randomly selected persons. If 1 of the 100 persons is randomly selected, find P(Group A or Rh+) and type a decimal Group A: 28Rh+ 7Rh- GroupB: 13+Rh 5Rh- GroupAB: 3Rh+ 4Rh- Group O: 34Rh+ 6Rh- Please show math involved

Problem # 1 The following is the current mathematical model for the production of Standard and Deluxe Bags by Par Manufacturing. Max 10s + 9d s.t. 7/10s +1d is < or equal to 630 1/2s + 5/6 d < or equal to 600 1s + 2/3 d < or equal to 708 1/10s + 1/4d