Question: The following table of data was analyzed in Quality Engineering [19911992, Vol. 4(1)]. The average particle size of raw material was obtained from 25 successive

The following table of data was analyzed in Quality Engineering [1991€“1992, Vol. 4(1)]. The average particle size of raw material was obtained from 25 successive samples.

Observation Size Observation Size 1 96.1 14 100.5 94.4 2 15 103.1 3 116.2 16 93.1 4 98.8 17 93.7 72.4 5 95.0 18 87.4 6.

(a) Using all the data, compute trial control limits for individual observations and moving-range charts. Construct the chart and plot the data. Determine whether the process is in statistical control. If not, assume that assignable causes can be found to eliminate these samples and revise the control limits.

(b) Estimate the process mean and standard deviation for the in-control process.

Observation Size Observation Size 1 96.1 14 100.5 94.4 2 15 103.1 3 116.2 16 93.1 4 98.8 17 93.7 72.4 5 95.0 18 87.4 6. 120.3 19 104.8 20 96.1 97.1 88.4 21 9. 106.8 22 95.7 10 96.8 23 94.2 102.4 11 100.9 24 12 117.7 25 131.9 13 115.6

Step by Step Solution

★★★★★

3.38 Rating (185 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The process is out of control The control charts follow Remove the ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Applied Statistics and Probability Questions!

Given the following table of data points find the best least squares fit by a linear function f(x) = c1 + c2x. x- 1 2

Consider the following table of data: a. Use all the appropriate formulas given in this section to approximate f'(0.4) and f''(0.4). b. Use all the appropriate formulas given in this section to...

Consider the following table of data: a. Use Eq. (4.7) to approximate f'(0.2). b. Use Eq. (4.7) to approximate f'(1.0). c. Use Eq. (4.6) to approximate f'(0.6). x | 0.2 f(0.9798652 0.91777 08080348...

The following table of data was analyzed in Quality Engineering [19911992, Vol. 4(1)]. The average particle size of raw material was obtained from 25 successive samples. (a) Using all the data,...

3 In 0900'0 500O'D 1000 0 FIG. 4. Process H alloy composition: (a) & chart, (b) "chart based on log ratios, (o) X' versus 73. S 0900'0 50COD 100070 S602 R. A. Boyles For this data set, step (3) in...

The best definition for nonparametric statistics I can think of is when data does not fit inside the normal parameters of a normal distribution, it calls for the use of this statistical method....

.... Kindly help out 14-93 The rework time required for a machine was found to 14-95. Consider the following ANOVA table from a two-fac- depend on the speed at which the machine was run (A). the or...

Based on the article above answer the questions. 1.briefly summarise how the job costing system was designed and implemented in your real-life organisation. 2.did the job costing system in the study...

Responsibility Center Presentation Imagine you have been selected by your manager to present a training session to a group of new employees. The new hires do not have accounting backgrounds and have...

Due Sunday, 11/20: Problems from Zimmerman text: 2-11, 2-44, Case 2-3, 7-7, and 7-20 Chapter Two The Nature of Costs Chapter Outline A. Opportunity Costs 1. Characteristics of Opportunity Costs 2....

Puffin Industries acquired all of Sunset Coast Digital's stock on December 31,2011, for $3,500,000, $2,100,000 in excess of book value. At that time, Sunset Coast's inventory (LIFO) was overvalued by...

Use truth sets to prove or disprove the following quantified statements. a) Let D = {-5, 3, 4} Let P(x) be the predicate "x - 6x - 13x + 42

What would the figure above have looked like if the Fed had been following a monetarist policy since 1996?

1. Scarcity is the condition of finite resources. True or false? Explain your answer.

Twenty accounting students are randomly assigned to two different sections of an intermediate accounting class. Each section ends up consisting of 10 students. In one of the sections,...

From each of four suppliers, a quality-control technician collects a random sample of 10 rivets, then measures the number of pounds each will withstand before it fails. Does this represent a designed...

For the experiment described in Exercise 12.6, identify the dependent and independent variables. Indicate whether each variable is quantitative or qualitative.

The price of a stock evolves as in the following two-steps binomial tree: Let X be a European call option with maturity at tick-time 2 and strike price 108. Assume that the interest rate r and time...

Octavia Bakery is planning to purchase one of two ovens. The expected cash flows for each oven are shown below. MARR is 8%/year. What is the capital recovery cost of Model 334A? $ Chapter 07,...

* Suppose commute times in a large city are normally distributed and that 66.60% of commuters in this city take more than 20 minutes to commute one way. If the standard deviation of such commutes is...