Brine Shrimp Write-Up Due Wed 9/12/2018 through turnitin.com

Your Lab Should Include the following:

• Background Information:  1-2 paragraphs of background on brine shrimp, citing any resources you used.
• Question:  Is there a significant difference in hatching rate between brine shrimp hatched with 3% salt water and 5% salt water?

• Using the class data, do a t-test between 3% and 5% salt water.  Use the equation and show your work! (class data below)
• Determine the number of degrees of freedom and look up the critical value.  (see t-test document on this blog)
• Compare the t-value to the critical value and interpret the meaning, being specific!
• Discuss the quality of the data.  Is it consistent? Is there enough of it?  
• Discuss at least 3 sources of uncertainty in the lab, being as specific as possible.  Include in your discussion whether you think these are major sources of uncertainty or fairly minor.
• Suggest at least 3 specific ways to improve the quality of the data.  In this case, each source of uncertainty should have a suggestion for improvement

Submit your lab by Wednesday 9/12/2018, 3:30 pm through turnitin.com.

Turnitin.com Enrollment Information: Class ID: 19010302 Password: microscope

Brine Shrimp Data (will be here!)
Brine Shrimp Hatching Rate in Percentage (must be alive too!) for 2 different salinites

3% Salinity 5% Salinity

14 4.0

0.1 .6

10. .6

3.0 .1

5.5 7.0

2.5 .6

16 13

1.0 .3
7.0 1.0

1.0 .3

.24 16
.5 .8