1. I am interested in asking people what they think about thecurrent election and who their favorite candiate is. I decide to goto random subdivisons and city blocks and ask 15 people from eachregion who their favorite candiate is. I decide to go to randomsubdivisons and city blocks and ask 15 people from each region whotheir favorite candiate is. This is an example of:
a. Stratified sampling
b. Simple Random Sampling
c. Systematic Sampling.
d. Cluster Sampling
2. If we have two unbiased estimators, the next thing we areinterested in checking is if they are:
a. Efficient
b. Consistent
3. 77% Of people have a gpa of 3.0 or higher. Suppose we take arandom sample of 500 students.
a. What is the standard error of the proportion
b. What is the probabilty that 80% or more of those people willhave a gpa higher than 3.0
4. In 2010, the average finshing time for marathons across theUS was approximately 278 minutes, with a standard deviation ofapproximately 63 minutes. what finishing time defines the fastes7.93% of runners?
a. 366.83
b. 189.17
c. 348.76
d. 405.78
