An exercise scientist wants to show that 20 year old women athletes have lower blood pressure than the general population of 20 year old women. It is known that, the systolic blood pressure
of 20 year old women has a mean of 120.
Which of the following pairs represent appropriate hypotheses for this problem?
a. Hu=120 vs. Hul> 120
C. Horu=120 vs. H: 120
b. Hofu 120 vs. He:u=120
d. Hou 120 vs. Hu=120
Ο Α
(1) В
D

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Evaluate cos2θ for cosθ = square root of 3/2