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The following are 80 measurements of the daily emissions (in tons) of sulfur dioxide from an industrial plant.
15.8
26.4
17.3
11.2
23.9
24.8
18.7
13.9
9
13.2
22.7
9.8
6.2
14.7
17.5
26.1
12.8
17.6
23.7
26.8
20.5
11
20.9
15.5
16.7
10.7
19.1
15.2
26.6
20.4
21.4
19.2
16.9
19
18.5
23
20.1
16.2
18
7.7
23.5
14.5
18.4
29.6
17
20.8
24.3
22.5
18.1
8.3
21.9
22.3
13.3
11.8
19.3
25.7
31.8
25.9
10.5
27.5
17.9
9.4
28.5
Note. Please consider the measurements: 6.2, 7.7, 8.3, 9.0, 9.8 and any other tens digit as 06.2, 07.7, 08.3, 09.0, and 09.8 respectively so that each measurement is a 3-digit character. Using the first two digits of the measurement as your stem, construct a stem and leaf display of the data above.
Using the display determine the following:
i) The median Q2.
ii) The 1st quartile Q1
iii) The 3rd Quartile Q3
iv) The inter-quartile range, Q3-Q1
Draw a Box and Whisker plot and label completely indicating items i-iv in the plot as well as the lower and upper whiskers and also the outliers and the extreme outliers.
How large a sample is required if the 97 percent level of confidence is used and the estimate is to be within $2,500? The standard deviation is $16,000.
Consider the following estimated regression equation, based on 10 observations.
Modify above problem (Problem 8th) so that each hardware vendor now demands seventy-five (75) units. Any units available from the vendors that are not shipped cost nothing.)
Construct ogive cure and numerical measures for the discrete data.
If Z = 1.96, s = 3, and E = 1, determine the correct sample size.
Use either Linear Programming module or Transportation module of Cd to minimize the shipping costs involved in move.
2 to every even-numbered card, with aces being 1s. Determine the frequencies of 0, 1, and 2. Use SPSS to get the value of test statistic and p-value.
Describe your answer to a person who has never had a course in statistics.
Determine the following areas under standard Normal distribution curve.
Construct a 96 percent confidence interval for the mean weight of all firefighters six months after the exercise rooms were installed.
The average number of typos on one page of a manuscript is 8. What is the probability that 4 to 6 type appear on 2 pages of the manuscript? Imagine Poisson distribution.
Illustrate by computation that, for straight -line regression of Y on x, β1= 0.
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