Flashcards
Lab 7- statistics and hypothesis testing
Cards in this deck (15)
- 1what side of the agar plate has the higheston the side opposite of the arrow
- 2describe the salinity gradient in terms of highest to lowest concentrations of NaCl15% on the left side and range from 0% on the right side
- 3how to determine the change in saline concentration per millimeterdivide the maximum saline concentration by the diameter of the plate
- 4which plates will go into the cold room and which plates will go into the incubatorcold-S1 and C1
incubator-S2 and C2 - 5how to determine if you reject or fail to reject hypothesiscompare the results of the control and the experimental treatments
- 6how do we ensure the sample mean is representative of the population meanmake sure the samples are chosen at random and is sufficiently large enough to represent the population
- 7what is the purpose of statistical teststo determine if the difference is significant and whether to reject or fail to reject the hypothesis
- 8what is the t-testa statistical test that allows us to determine whether two means are significantly different
- 9what would be the null hypothesis for the t-testthere is no statistically significant difference between the two means
- 10what does the t-value combinethe mean and the SEM for both groups
- 11what does a large t-value meanthe more likely it is that the difference between the two means is statistically significant
- 12what happens if the t-value calculated is greater or equal to the t-value in the tablethen the two means are significantly different at the level of probability corresponding to the p-value
- 13what happens if the p-value is less than 5%the two means/groups are statistically significantly different
- 14how to calculate the t-value
- 15how to calculate the SEM
Information
- Description
- Biology 243- laboratory component Flashcards on Lab 7- statistics and hypothesis testing, created by Chelsea Scheck on 07/03/2019.
- Created by
- Chelsea Scheck
- Views
- 0
- Rating