COHP 350 Final Questions with Accurate
Answers
A clinical trial cohort of 30 patients will be randomly selected from a group of 36
males and 48 females. Let X = the number of women in the cohort of 30. Let x
take on the values 0, 1, 2, 3,...30 where r = 48, b = 36, and n = 30. Find P (x = 12)
a. binomial distribution
b. hypergeometric distribution
c. uniform distribution
d. geometric distribution
e. poison distribution correct answer B
A hypothesis test of a single population proportion, p, must meet the conditions
for:
a. a uniform distribution
b. an exponential distribution
c. a chi-square distribution
d. a binomial distribution
e. a poison distribution correct answer D
A positive z-score value tells us how many ___________, the value x is above (or
to the right of) the population mean, U.
a. confidence intervals
b. sample means, x (xbar)
c. standard deviations
d. proportions correct answer C
, A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
"Duration" is what type of data?
a. Nominal Scale
b. Qualitative (categorical)
c. Quantitative continuous
d. Quantitative discrete correct answer C
A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
"Number of times per week" is what type of data?
a. Quantitative Discrete
b. Qualitative Continuous
c. Qualitative (categorical)
d. Nominal scale correct answer A
A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
The SAMPLING METHOD used in this scenario is known as _____?
a. stratified
Answers
A clinical trial cohort of 30 patients will be randomly selected from a group of 36
males and 48 females. Let X = the number of women in the cohort of 30. Let x
take on the values 0, 1, 2, 3,...30 where r = 48, b = 36, and n = 30. Find P (x = 12)
a. binomial distribution
b. hypergeometric distribution
c. uniform distribution
d. geometric distribution
e. poison distribution correct answer B
A hypothesis test of a single population proportion, p, must meet the conditions
for:
a. a uniform distribution
b. an exponential distribution
c. a chi-square distribution
d. a binomial distribution
e. a poison distribution correct answer D
A positive z-score value tells us how many ___________, the value x is above (or
to the right of) the population mean, U.
a. confidence intervals
b. sample means, x (xbar)
c. standard deviations
d. proportions correct answer C
, A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
"Duration" is what type of data?
a. Nominal Scale
b. Qualitative (categorical)
c. Quantitative continuous
d. Quantitative discrete correct answer C
A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
"Number of times per week" is what type of data?
a. Quantitative Discrete
b. Qualitative Continuous
c. Qualitative (categorical)
d. Nominal scale correct answer A
A study was done to determine the age, number of times per week, and the
duration (amount of time) residents use a local park in Grand Rapids. The first
house in the neighborhood around the park was selected randomly and then
every eighth house in the neighborhood around the park was interviewed.
The SAMPLING METHOD used in this scenario is known as _____?
a. stratified
