Question

In: Statistics and Probability

Complete the 2nd table below by supplementing the data from the first table. Create 13 classes/groups...

Complete the 2nd table below by supplementing the data from the first table. Create 13 classes/groups using
7 as the class interval. The lowest value of the first class/group is the lowest value of the given set of data.
Thus the class mark of the first class is 10. The last class, class 13th, is from 91 to 97.

This data is a sample. The variance of this sample grouped data is 764.4   

Find the following: Mean using Short Method, Mode, SKP, SKB, SKK, Five number summary (Lowest and
highest value from the ungrouped data and Quartiles of the grouped data), normality and the outliers.




















X Values
25 38 44 94
65 61 55 92
56 65 21 78
22 60 88 87
18 44 41 8
96 10 32 8
42 84 8 44
96 54 21 63
7 63 25 40
47 87 39 80

Solutions

Expert Solution

> x
[1] 25 38 44 94 65 61 55 92 56 65 21 78 22 60 88 87 18 44 41 8 96 10 32 8 42 84 8 44 96 54 21 63 7 63 25 40 47 87 39 80
> mean(x)
[1] 50.2
> median(x)
[1] 45.5
> summary(x)
Min. 1st Qu. Median Mean 3rd Qu. Max.
7.00 25.00 45.50 50.20 68.25 96.00
> table(x)
x
7 8 10 18 21 22 25 32 38 39 40 41 42 44 47 54 55 56 60 61 63 65 78 80 84 87 88 92 94 96
1 3 1 1 2 1 2 1 1 1 1 1 1 3 1 1 1 1 1 1 2 2 1 1 1 2 1 1 1 2
> mode=8 ##observation with high frequency
> skp=3*(mean(x)-median(x))/sd(x);skp
[1] 0.5044433
> qqnorm(x)
> qqline(x)


> s=shapiro.test(x);s

   Shapiro-Wilk normality test

data: x
W = 0.9444, p-value = 0.04876

> ifelse(s$p.value<0.05,"sample is not normal","sample is normally distributed")
[1] "sample is not normal"


Related Solutions

Complete the 2nd table below by supplementing the data from the first table. Create 13 classes/groups...
Complete the 2nd table below by supplementing the data from the first table. Create 13 classes/groups using 7 as the class interval. The lowest value of the first class/group is the lowest value of the given set of data. Thus the class mark of the first class is 10. The last class, class 13th, is from 91 to 97. This data is a sample. The variance of this sample grouped data is 764.4    Find the following: Mean using Short...
The table below represents data on a variable of interest collected from two independent groups, in...
The table below represents data on a variable of interest collected from two independent groups, in which each group was randomly assigned 10 participants. A researcher is interested in testing whether the two groups have different means. Group 1 = 4, 4, 2, 6, 3, 5, 6, 1, 5, 4 Group 2 = 6, 10, 4, 7, 8, 5, 9, 10, 6, 7 Please bold answers and show work a) What are the appropriate hypothesis for this analysis? b) What...
The data in the table below are for the economy of Nubia. a. Complete the AE...
The data in the table below are for the economy of Nubia. a. Complete the AE column. Y T YD C S I G X IM XN AE 0 80 −80 20 −100 40 105 170 60 110 300 95 205 260 −55 40 105 170 75 95 600 110 490 500 −10 40 105 170 90 80 900 125 775 740 35 40 105 170 105 65 1,200 140 1,060 980 80 40 105 170 120 50 b. Write...
First create the text file given below. Then complete the main that is given. There are...
First create the text file given below. Then complete the main that is given. There are comments to help you. An output is also given Create this text file: data1.txt -59 -33 34 0 69 24 -22 58 62 -36 5 45 -19 -73 62 -5 95 42 ` Create a project and a Main class and copy the Main class and method given below. First declare the array below the comments that tell you to declare it. Then there...
The table below gives the net worth of the first 13 U.S. Presidents as measured in...
The table below gives the net worth of the first 13 U.S. Presidents as measured in millions of 2010 dollars (that just means the numbers have been adjusted for inflation). President Washington Adams Jefferson Madison Monroe Adams Jackson Van Buren Harrison Tyler Polk Taylor Fillmore Net Worth $525 $19 $212 $101 $27 $21 $119 $26 $5 $51 $10 $6 $4 Determine the following for this data set. Round to one decimal place, as necessary. Mean. Median. Mode Midrange Range Standard...
For the sample Data given create a frequency table using 6 classes. Find all relative and...
For the sample Data given create a frequency table using 6 classes. Find all relative and cumulative frequencies Data:94.7, 106.1, 117.5, 128.9, 135.5, 139.2, 142.3, 143.1, 144.5, 152.5, 156.4, 158.5, 159.6, 165.7, 166.5, 173.2, 175.5, 188.0, 199.0, 216.1 Use the frequencies found in the table above to sketch the histogram for the distribution. Use the class boundaries for the horizontal axis.
4.  Create a C/R/Psystem chart for your product line. First, complete the data matrix              shown below with...
4.  Create a C/R/Psystem chart for your product line. First, complete the data matrix              shown below with appropriate “R” and “P” values that would be associated with each      given value of “x”.  Second, use the “x”, “C”, “R”, “P” information as the basis for       your Excel Chart.         a.  To identify Revenue “R” values, use the equation you previously created in              Section B, item “B.3”, to perform calculations at each “x” value. Revenue.  R= [(p)][(x)] = [–0.4375(x) + 937.5][(x)] = –0.4375(x)2+ 937.5(x).       b.  To identify Profit...
Based on the data definition classes identified below, assume you wish to create a Dictionary class...
Based on the data definition classes identified below, assume you wish to create a Dictionary class that inherits from the Book class. In addition to title and cost, the Dictionary class must also store the number of words present in the dictionary. Write the code that will create a constructor in the dictionary class that passes in and sets the dictionary's title, cost, and number of words. public class Book {    private String title;    private double cost;       public Book(String...
Assignment: Data Quality Directions: Complete the table below by defining each data characteristic and providing an...
Assignment: Data Quality Directions: Complete the table below by defining each data characteristic and providing an example of each quality characteristic as it relates to coding. Data Characteristic Definition Coding Example Accuracy Accessibility Comprehensiveness Consistency Currency Definition Granularity Precision Relevancy Timeliness
Complete the data table below with the values you measured in the experiment. Remember to include...
Complete the data table below with the values you measured in the experiment. Remember to include units and use proper sig figs. Amount measured Methanol 8.01 mL Vegetable oil 1.02 mL 2. How many moles of biodiesel (methyl ester) is produced per mole of triglyceride? 3. What important step does calcium methoxide facilitate? Is the calcium methoxide used up in the synthesis? 4. Complete the data table below with the values you measured in the experiment. Remember to include units...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT