MATH225N Week 5 Lab Assignment

MATH225N Week 5 Lab Assignment

Please use this template to help answer the questions listed in the lab instructions.  The “steps” below refer to the steps listed in the lab instructions.  Type your answers and post your screenshots in the spaces given below.  Then, save this document with your name and submit it inside the course room.

Step 1.  Gather Data 

Your instructors will post 10 data values to use for this lab.  The data values represent the HEIGHTS of 10 people from the same population in which you gathered your sample.

Please reach out to your instructor if you did not receive the assigned 10 data values for the term by Monday of Week 5.

(NOTE:  This is NOT the data used in the lab video, which is about midterm grades.  Do not use the midterm grades data.)

1a.  Gather 10 MORE of your own to add to the 10 provided by your instructor.  Do the following:  Survey or measure 10 people to find their heights. For the remainder of this lab, treat the 20 numbers as ONE sample.

Determine the mean and standard deviation for the 20 values by using the Week 3 Excel spreadsheet.  (Round statistics to two decimals.)

1b.  Post a screen shot in the space BELOW of the portion of the Week 3 spreadsheet that helped you determine these values. Please list the 10 heights your professor provided first followed by the 10 heights you collected.  There should be 20 values to determine the mean and sample standard deviation.

1c.  Answer the following two questions (Answer in complete sentences).

How does your height compare to the mean (average) height of the 20 values? Is your height taller, shorter, or the same as the mean of the sample?

Step 2.  Data Characteristics

Answer the following questions to give some background information on the group of people you used in your study.  Write in complete sentences.

1. How did you choose the participants for your study? What was the sampling method: systematic, convenience, cluster, stratified, simple random, etc.? Explain how you concluded that you used the selected sampling method.

Solution for MATH225 Week 5

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