Statics process control and improvements, Basic Statistics

1. Warm-up Exercise

Volumes I, II, III, and IV of Shakespeare are in sequence next to one another in the library bookcase.  Each volume has 2" of pages and the front and back covers of each of the volumes are each ¼" thick.

If a bookworm starts at Page 1 of Volume I and eats its way through the volumes (following the shortest route) to the last page of volume IV, how many inches did the bookworm travel?

Answer the following three questions based on what you know about statistics now.

2. What is Statistics?

3. How is it abused?

4. How should it be used in decision-making?

5. Find the errors in the following mean, median, and mode matrix and correct them:

                                                Mean                                                    Median                                     Mode

a.  5, 3, 4, 1, 2?                    3                                                                  3                                            3

b.  5, 5, 5, 5, 5?                    5                                                                  5                                            5

c.  3, 3, 3, 1, 3, 5?                3                                                                  3                                            3

d.  8, 6, 4, 5, 8, 11?           7.5                                                                  8                                            8

e.  1, 1, 7, 1, 1?                2.2                                                                  1.5                                          1

6. Refer to the run chart on page 6.  Why is there no solid black vertical line at data point #4 = 8?

7. Calculate the variance and standard deviation of problems b-e below, using problem a as a guide:

a. 1, 2, 3, 4, 5

    Step 1     Step 2                 Step 3

      1     -3  =    -2     x   -2 =   4

      2     -3  =    -1      x  -1 =   1

      3     -3  =     0      x   0 =   0

      4     -3  =     1      x   1 =   1

      5     -3  =     2      x   2 =   4

Sum       15                                           Sum     10 (Step 4) / (5-1) = 10/4 = 2.5 (Step 5) = V

Number    5

Average   3                                                          Step 6 = the square root of V = 1.58 = SD

Now you do the following four:

b. 5, 5, 5, 5, 5

c. 1, 3, 3, 3, 3, 3, 5

d. 2, 5, 4, 5, 8, 6

e. 1, 1, 7, 1, 1

8. Using the x-axis given at the bottom of this page, construct the frequency histogram for the data set: 8, 10, 5, 11, 6, 6, 9, 12, 6, 8, 8, 20, 7, 8, 9, 7, 8, 7, 7, 13, 9, 8, 10, 8, 7, 8

5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20

Posted Date: 2/25/2013 1:42:23 AM | Location : United States







Related Discussions:- Statics process control and improvements, Assignment Help, Ask Question on Statics process control and improvements, Get Answer, Expert's Help, Statics process control and improvements Discussions

Write discussion on Statics process control and improvements
Your posts are moderated
Related Questions
Tension: When a sequence, place, cable or a man is presented tight, the ends of the sequence or place (or wire) pull on whatever systems are connected to them towards the sequence.

CRSL has a large auditorium which can cater for 300 people and is ideal for formal balls and functions. The auditorium can also be reconfigured to cater for 100 people. The Seasons

Median The median describes the value of the middle term in data. The data set must be ranked first in increasing order before the middle value is identified. The median separa

The next step is to determine the sources of data to be used. The researcher has to decide whether he has to collect primary data ror depend exclusively on secondary data. Sometime

how to figure out cost of good available for sale, cost of sales, ending inventory

This hypothesis was put forward by Heinsberg after the discovery by Chadwick. According to this hypothesis, a nucleus of mass number A and atomic number Z contains Z protons, and

The Pivot table is as below: Values Row Labels Sum of ID Sum of Risk Level A 69

received security deposits from tenant how does it will be shown in accounting equation

what are different method of classifying overhead? indicate the advantag

HOW DO U CALCULATE VARIABLE SELLING AND ADMINISTRATIVE EXPENSES IF GIVEN MARKETING COSTS ADVERTSING P6000 PER MONTH SALES PERSONNEL SALARIES AND COMMISSION R 80000 PER MONTH PLUS