The below distribution gives the pattern of overtime work per week done by 100 workers of a Corporation. Compute Overtime hours 10 - 15 15 - 20 20 - 25 25 – 30 30 - 35 35 - 40 No. of employees 10 20 33 22 8 7
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
DO THE B PART
- The below table demonstrate the ages of competitors in a charity football
event in Italy:
Age Percent
19–24 26
25–34 16.25
35–44 25.88
45–54 19.26
55+ 21.35
(i) What percent of competitors were under the age of 25?
(ii) Construct a frequency distribution.
(iii) Construct a histogram.
(iv) Construct an ogive.
(b) The below distribution gives the pattern of overtime work per week done by 100 workers of a
Corporation. Compute
|
Overtime hours |
10 - 15 |
15 - 20 |
20 - 25 |
25 – 30 |
30 - 35 |
35 - 40 |
|
No. of employees |
10 |
20 |
33 |
22 |
8 |
7 |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
