An experiment is conducted with two groups of 25 college students. The treatment group scored an average of 3.67 with a standard deviation of 0.86 . The placebo group scored an average of 3.29 with a standard deviation of 0.97 . Calculate a 95 pooled confidence interval for the difference in means between the treatment and the placebo.
a. (0.44, 0.82)
b. (0.14, 0.90)
c. (0.25, 1.01)
d. None of the above
Question 2
When a random sample is to be taken from a population and a statistic is to be computed, the statistic can also be thought of as
a. a parameter.
b. a random variable.
c. a standard error.
d. a sample.
Experiment of Lederberg and Tatum demonstrating gene transfer in E. coli.
Leder's experiment showing the binding of mRNA to DNA that contains an intron
The most polygynous primates live in groups with many more females than males.
Students in class
IgG after treatment with urea plus mercaptoethanol.
IgG after treatment with papain.