2. Why Statistical Reasoning is Important for Anatomy and Physiology Students and Professionals In collaboration with Barry Putman, Professor of Biology, Natural Science Coordinator, JBLM This topic is discussed in the following Pierce College Course: Biol 241

Briefing 8.1 Near Point of Accommodation (NPA) is the nearest point at which the eyes can comfortably focus. In the lab conducted in the anatomy and physiology class, students will hold a meter stick against their forehead, close their left eye and with their right eye they will focus on a small ruler held against the meter stick. With the ruler starting at arm's length they will slowly move it toward their eye. When they reach the point where the ruler has the greatest focus (NPA), a partner will record the distance, in centimeters, from their eye. Since people often need glasses later in life, it would be reasonable to determine if there is a correlation between a person's age and their NPA. Consequently, students in the study record both their age and NPA.

2a. Of the two variables, NPA and age, which should be the explanatory variable?

NPA

age

: Why?

2b. Of the two variables, NPA and age, which should be the response variable?

NPA

age

: Why?

2c. There were 103 data values made available for this problem. If a systematic sampling method is used with every 10th value selected and the first number is 7, what are the ten numbers selected?

2d. Use Excel to make a scatter plot, then upload it here.

Choose File No file chosen

Last file submitted: correctionsandedscatplot2.png L [+]

Write a complete sentence explaining your interpretation of the graph

2f. Write and test the hypotheses to determine if there is a significant correlation in the population. Use a 0.10 level of significance. Write a concluding sentence. For p, type rho. For a 7 sign, use ne.

Write the hypotheses:

Ho :

H1 :

Write the concluding sentence (as you've been taught and as has been demonstrated frequently)

2g. What type error could have been made? O Type I Type II

2h. What do you conclude about the relationship between age and NPA?

2c. There were 103 data values made available for this problem. If a systematic sampling method is used with every 10 th value selected and the first number is 7 , what are the ten numbers selected? 2d. Use Excel to make a scatter plot, then upload it here. No file chosen Last file submitted: correctionsandedscatplot2.png [+] Write a complete sentence explaining vour interoretation of the graph 2e. Use your calculator (or Excel) to find the sample correlation. 2f. Write and test the hypotheses to determine if there is a significant correlation in the population. Use a 0.10 level of significance. Write a concluding sentence. For , type rho. For a = sign, use ne. Write the hypotheses: H0 : H1 : Write the concluding sentence (as you've been taught and as has been demonstrated frequently) 28. What type error could have been made? Type 10 Type II 2h. What do vou conclude about the relationship between age and NPA? 2. Why Statistical Reasoning is Important for Anatomy and Physiology Students and Professionals In collaboration with Barry Putman, Professor of Biology, Natural Science Coordinator, JBLM This topic is discussed in the following Pierce College Course: Biol 241 Briefing 8.1 Near Point of Accommodation (NPA) is the nearest point at which the eyes can comfortably focus. In the lab conducted in the anatomy and physiology class, students will hold a meter stick against their forehead, close their left eye and with their right eye they will focus on a small ruler held against the meter stick. With the ruler starting at arm's length they will slowly move it toward their eye. When they reach the point where the ruler has the greatest focus (NPA), a partner will record the distance, in centimeters, from their eye. Since people often need glasses later in life, it would be reasonable to determine if there is a correlation between a person's age and their NPA. Consequently, students in the study record both their age and NPA. 2a. Of the two variables, NPA and age, which should be the explanatory variable? NPA age Why? 2b. Of the two variables, NPA and age, which should be the response variable? NPA age