QUESTION 33

1.              In order to BEST test a causal hypothesis about an exposure and outcome, the researcher should                                           incorporate which of the following elements into their study?

2 points   

QUESTION 34

1.             Sustainable development considers the following main factors when addressing a global health issue:

2 points   

QUESTION 35

1.             Rising temperature impacts vector-borne disease transmission through:

2 points   

QUESTION 36

1.    Industrialization has contribute to the spread of emerging communicable diseases.

True

False

2 points   

QUESTION 37

1.               Compared to other study designs, studies that use the _________ design yield results that are the most                                   difficult to interpret.

2 points   

QUESTION 38

1.             According to the WHO, approximately 1.2 billion worldwide live in poverty.

True

False

2 points   

QUESTION 39

1.              The most effective intervention to decrease WASH-related disease transmission is:

2 points   

QUESTION 40

1.      Which of the following is a strength of using a cohort study design?

2 points   

QUESTION 41

1.             When examining the global HIV data between 2000 and 2015, the number of people living with HIV _______ and the number of people who received HIV treatment _________.

CCA has stated in 2017 that 37.5 % of its students are first generation college students.
Suppose you sample 15 CCA students and ask if they are first generation college students or not, counting the number of first generation students.

a. Create a binomial probability distribution (table) for this situation.

(Report answers accurate to 4 decimal places.)

a. What is the probability that 11 students or less are first generation?


b. What is the probability that at least 7 students are first generation ?


c. What is the probability that 4 students will be first generation?


d. What is the probability that between 7-14 students are first generation (inclusing 7 and 14)?


e. What is the probability that 7 students are NOT first generation?

Suppose U is a subspace of a finite dimensional vector space V. Prove there exists an operator T on V such that the null space of T is U.

Find general solution to the differential equation x'(t) = Ax(t) + v, A = [ 2 −2; 2 2] , v = (2 0) .

Brief the following Cases:

Eisner v. Macomber 252 U.S. 189 (1920)

Cheek v. U.S. 498 U.S. 192 (1991)

Christine is the dean of students at a college. She is concerned about the amount of sleep students are getting. In particular, Christine is making an inquiry on whether students who are enrolled in the pre-med program are getting less sleep on average compared to students who are enrolled in other programs. The average amount of sleep per night for a random sample of 10 pre-med students and 10 students in other programs is recorded. Assume that the population standard deviation of hours of sleep per night is 0.6 hour for the pre-med students and 0.8 hour for the students in other programs, and that the number of hours of sleep per night for both groups of students is normally distributed. Let the pre-med students be the first sample, and let the other students be the second sample. She conducts a two-mean hypothesis test at the 0.05 level of significance, to test if there is evidence that pre-med students are getting less sleep than students in other programs.

(a) H0:μ1=μ2; Ha:μ1<μ2, which is a left-tailed test.

The above table shows the average amount of sleep per night for a random sample of 10 pre-med students and 10students in other programs.

(b) Use a TI-83, TI-83 Plus, or TI-84 calculator to test if the mean sleep for pre-med students is less than the mean sleep for other students. Identify the test statistic, z, and p-value from the calculator output. Round your test statistic to two decimal places and your p-value to three decimal places.

c) Which of the following are appropriate conclusions for this hypothesis test? Select all that apply.

Let V = {P(x) ∈ P10(R) : P'(−4) = 0 and P''(2) = 0}. If V= M_3×n(R), find n.

Ed's utility from vacations (V) and meals (M) is given by the function
U(V,M) = V2M. Last year, the price of vacations was $200 and the price of meals
was $50. This year, the price of meals rose to $75, the price of vacations remained
the same. Both years, Ed had an income of $1500.
a. Set up a Lagrangian to solve utility maximization problem with initial
price and find equilibrium.
b. When price of meals increased repeat the a and find equilibrium.
c. Show both equilibrium in the graph. Place vacation on the vertical axis
and meals on the horizontal axis.
d. show the compensating variation for price change in meals in the graph.
e. Calculate compensating variation as numeric number for the price
change in meals. (Hint: Use expenditure function)
f. Calculatethe equivalent variation as numeric number for the price
change in meals.

Calculate the vibrational energy difference, in cm-1, between the v=0 and v=1 energy level in a hydrogen chloride-35 molecule. Isotope masses to three decimal places are taken from NIST and force constants from hyperphysics. Use the isotope mass, not the average mass.