Posted: August 31st, 2015

SLP4

SLP4

Write a 1 page paper answering the questions;

•    Recalculate the mean, standard deviation, and variance.
•    Is your mean increasing or decreasing?
•    Explain the effects of the larger sample size in relation to your data.
•    Do you think the current sample you have is enough to draw an accurate conclusion, or do you need a larger sample?
•    What conclusions can you draw from comparing both sets of data?

The data has been provided below:

Data

How much time I spent driving

Mon 7/13/15

Home to gym- 8 min
Gym to home – 11 min
home to work – 9 min
Work to home 12 min

Tues 7/14/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home 15 min

Wed 7/15/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home 13 min

Thur 7/16/15

Home gym – 10
Gym to home – 12 min
home to work – 9 min
Work to main office – 5 min
Main office to work  – 5min
Work to home 15 min

Friday 7/17/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home 13 min

Sat 7/18/15

Home to store – 2 min
Store to home – 2 min

Sun 7/19/15

No driving

Mon 7/20/15

Home to gym- 9 min
Gym to home – 12 min
home to work – 9 min
Work to home 12 min
Home to store 2 min
Store to home 2 min

Tues 7/21/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home – 10
Home to work -10
Work to home 13 min

Weds 7/22/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home 13 min

Thur 7/23/15

Home to gym- 9 min
Gym to home – 11 min
home to work – 9 min
Work to home – 9 min
Home to cable store – 20 min
Cable store to work  – 30 min
Work to main office – 5 min
Main office to work – 5 min
Work to phone store  – 15 min
Phone store to home – 15 min

Fri 7/24/15

Home to gym- 9 min
Gym to home – 12 min
home to work – 9 min
Work to home 15 min

Sat 7/25/15

Home to store- 1 min
Store to home – 1

Sun 7/26/15

No driving

Mon 7/27/15

Home to gym- 8 min
Gym to home – 10 min
home to work – 10 min
Work to home 12 min

Tues 7/28/15

Home to gym- 9 min
Gym to home – 10 min
home to work – 10 min
Work to home 12 min

Weds 7/29/15

Home to gym- 9 min
Gym to home – 10 min
home to work – 11 min
Work to home 12 min

Thurs

Home to gym- 9 min
Gym to home – 10 min
home to work – 10 min
Work to home 14 min

Sources

Digital Readings
Read section D from
Lane, D. M., & Hebl, M. (n.d.). Online Statistics Education: Introduction. Retrieved fromhttp://onlinestatbook.com/2/introduction/introduction.html
Read sections A–H from
Lane, D. M. (n.d.). Online Statistics Education: Research Design. Retrieved fromhttp://onlinestatbook.com/2/research_design/contents.html
Read sections External Validity, Sampling Terminology, Statistical Terms in Sampling, Probability Sampling, and Nonprobability Sampling from
Trochim, W.M.K. (2006).  Research methods knowledge base: Probability sampling. Retrieved fromhttp://www.socialresearchmethods.net/kb/sampling.php
Videos and Exercises
Using the websites below, watch the videos and complete the practice exercises for the topics inBOLD:
Khan Academy. (2014). Statistical studies. Retrieved fromhttps://www.khanacademy.org/math/probability/statistical-studies
•    Types of statistical studies (3 videos, 1 practice exercises)
Khan Academy. (2010). Surveys and samples. Retrieved from http://www.youtube.com/watch?v=nabw6v93Xns
Optional
Easton, V.J., & McColl, J.H. (n.d.). Statistics glossary. Retrieved fromhttp://www.stats.gla.ac.uk/steps/glossary/sampling.html