The number of visible defects on a product container is thought to be Poisson distributed with a mean equal to 3.5. Based on this, the probability that 2 containers will contain a total of less than 2 defects is:
A) 0.0223
B) 0.1359
C) 0.0073
D) 0.1850
Q. 2For a given sample size n, if the level of significance () is decreased, the power of the test:
A) will increase.
B) will decrease.
C) will remain the same.
D) cannot be determined.
Q. 3Assuming that potholes occur randomly along roads, the number of potholes per mile of road could best be described by the:
A) binomial distribution.
B) Poisson distribution.
C) hypergeometric distribution.
D) continuous distribution
Q. 4Which of the following is not a required step in finding beta?
A) Assuming a true value of the population parameter where the null is false
B) Finding the critical value based on the null hypothesis
C) Converting the critical value from the standard normal distribution to the units of the data
D) Finding the power of the test
Q. 5If a study is set up in such a way that a sample of people is surveyed to determine whether they have ever used a particular product, the likely probability distribution that would describe the random variable, the number who say yes, is a:
A) binomial distribution.
B) Poisson distribution.
C) uniform distribution.
D) continuous distribution.
Quick Reply
