question 2)
Sr. no | sorted X |
1 | 13 |
2 | 50 |
3 | 51 |
4 | 52 |
5 | 54 |
6 | 55 |
7 | 55 |
8 | 55 |
9 | 56 |
10 | 57 |
11 | 57 |
12 | 59 |
13 | 70 |
14 | 70 |
15 | 70 |
16 | 74 |
17 | 74 |
18 | 75 |
19 | 76 |
20 | 77 |
21 | 77 |
22 | 78 |
23 | 83 |
24 | 83 |
25 | 92 |
Median=0.5(n+1)th value = 13 th value
of sorted data
= 70
quartile , Q1 = 0.25(n+1)th value= 6.5 th
value of sorted data
= 55
Quartile , Q3 = 0.75(n+1)th value= 19.5 th
value of sorted data
= 76.5
IQR = Q3-Q1 = 21.5
1.5IQR = 32.25
lower bound=Q1-1.5IQR= 22.75
upper bound=Q3+1.5IQR= 108.75
outlier =values outside lower bound and upper bound
count below lower bound= 1
count above upper bound= 0
total outlier = 1
maximum = 92
five number summary is (50,55,70,76.5,92)
-----------------
question 3)
Sr. no | X | (X - X̄)² |
1 | 74 | 89.870 |
2 | 75 | 109.830 |
3 | 57 | 56.550 |
4 | 83 | 341.510 |
5 | 77 | 155.750 |
6 | 83 | 341.510 |
7 | 59 | 30.470 |
8 | 70 | 30.030 |
9 | 55 | 90.630 |
10 | 55 | 90.630 |
11 | 70 | 30.030 |
12 | 92 | 755.150 |
13 | 52 | 156.750 |
14 | 78 | 181.710 |
15 | 51 | 182.790 |
16 | 55 | 90.630 |
17 | 56 | 72.590 |
18 | 74 | 89.870 |
19 | 13 | 2654.310 |
20 | 70 | 30.030 |
21 | 76 | 131.790 |
22 | 50 | 210.830 |
23 | 77 | 155.750 |
24 | 54 | 110.670 |
25 | 57 | 56.550 |
X | (X - X̄)² | |
total sum | 1613 | 6246.240 |
n | 25 | 25 |
mean = ΣX/n = 1613.000
/ 25.000 = 64.5
sample variance = Σ(X - X̄)²/(n-1)=
6246.2400 / 24.0000
= 260.2600
sample std dev = √ [ Σ(X - X̄)²/(n-1)] =
√ 260.2600 =
16.1
answer: 64.5 , 16.1
---------------------------------------------------------------------------------------------------
Question 2 The following is a list of history midterm scores. Incorrect 74 83 70 76 0.00 points out of 5.00 75 59 92 5...
Question 2 Incorrect Mark 0.00 out of 5.00 P Flag question Instruction Fill in the blanks. Do not use thousand seperator, use 2 decimal places only. Which among the following (simple) annuities will you choose based on the future value? Option 1 Option 2 Option 3 Option 4 500 515 475 450 rate per annum 10.00% 5.00% 15.00% 20.00% payments per year 12 12 12 12 t(years) 12 13486.73 122918.53 87479.72 176617.91 The best option is option 4 Check Incorrect...
Question 1 Incorrect 0.00 points out of 1.00 P Flag question the origin of the coordinate system We need to calculate the centroid location with respect for the object below. X = 34 mm Х, = 58 mm X3 = 38 mm Y = 54 mm Y2 = 31 mm r = 13 mm Let's work our way through the problem one step at a time. The first step in any centroid calculation is to break the object up into...
Question 1 (5 points) It is strongly suggested you sketch out this vector problem before attempting to answer. A force F - 315N acts in the first quadrant at an angle of 70° above the x-axis, while a second force F2 - 210N acts in the 3rd quadrant at an angle of 40° below the x-axis. What is the magnitude of the Resultant of these two forces ? 434N 508N 313N 169N Question 2 (5 points) Using the data from...
Question 10 O out of 2 points For the following data values below, construct a 90% confidence interval if the sample mean is known to be 0.719 and the standard deviation is 0.366. (Round to the nearest thousandth) (Type your answer in using parentheses! Use a comma when inputing your answers! Do not type any unnecessary spaces! List your answers in ascending order!) for example: (0.45,0.78) 0.56, 0.75, 0.10, 0.95, 1.25, 0.54, 0.88 Selected Answer: (0.4502,0.9878) Response Feedback: Be careful...
QUESTION 2 Incorrect Mark 0.00 out of 10.00P Flag question Analysis and Interpretation of Profitability Balance sheets and income statements for Target Corporation follow. Income Statement For Fiscal Years Ended ( millions) 2006 2005 2004 Sales Credit card revenues Total revenues Cost of sales Selling, general and administrative expenses Credit card expenses Depreciation and amortization Earnings before interest and income taxes Net interest expense Earnings before income taxes Provisions for income taxes Net earnings 51,271 45,682 40,928 1,349 57 1,097...
Student #2 C- 72% 144 34 0 40 70 Student #3 74% C 148 40 10 43 55 Student # 4 50 36 A 93% 186 10 90 Student #5 B+ 87% 174 48 10 46 70 Student #6 56% 112 44 5 28 35 Student #7 65 84% 168 50 10 43 Student #8 48 B- 80% 159 46 10 55 Student #9 C+ 79% 158 50 10 73 25 Student #10 86% 172 33 5 44 90 Student...
Use SPSS for this exam, be sure to include all the following information to get full credits: (1) null and alternative hypotheses (15%) (2) nameofthe test(15%, explain why you chose it) (3) thetest statistic and its degree offreedom or ANOVAtable(if applicable) (30%! (4) p-value (15%), and (5) scientific conclusion (25%, using 0.05 significance). 1. Ostriches live in hot environments, and they are normally exposed to the sun for long periods Mammals in similar environments have special mechanisms for reducing the...