• Course Code: STA101
• University: Elite Education Institute
• Country: Australia

## Question:

How long on average would it take (i) Bill, (ii) Ben to finish the job What is the standard deviation of the time it would take each of Bill and Ben to finish the job Interpret the results. Who would you choose to do the job.

The following dataset contains ages of 10 randomly selected students in a school. Complete (a) to (e) below.
9, 11, 12, 13, 13 , 15, 16, 21, 28, 42
(a) Compute the mean and standard deviation.
(b) Find the median, and compare the mean and median to determine the skewness of the dataset.
(c) Calculate the coefficient of variation.
(d) Locate the first quartile, third quartile
(e) Locate the 80th percentile.
(e) Find out the range and inter-quartile range for the dataset. Suppose the last observation (42) was incorrectly entered. If the correct age was 80, how would the correction affect the range and the inter-quartile range.

### Cite This Work

[Accessed 03 December 2022].

My Assignment Help. 'Statistics For Business' (My Assignment Help, 2021) <https://myassignmenthelp.com/free-samples/sta101-statistics-for-business/in-standard-deviation.html> accessed 03 December 2022.

My Assignment Help. Statistics For Business [Internet]. My Assignment Help. 2021 [cited 03 December 2022]. Available from: https://myassignmenthelp.com/free-samples/sta101-statistics-for-business/in-standard-deviation.html.

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