Find a simple random sample of 50 freshmen

Assignment Help Basic Statistics

Reference no: EM137691

1. A small college has 500 Freshmen, 400 Sophomores, 350 Juniors, and 300 Seniors. They wish to conduct a survey of their students and find a simple random sample of 50 Freshmen, 40 Sophomores, 35 Juniors, and 30 Seniors. The overall sample is
A. a stratified sample.
B. a simple random sample.
C. a multi-stage sample.

2. In a controversial election district, 73% of registered voters are Democrat. A random survey of 500 voters had 68% Democrats. Are the bold numbers parameters or statistics?
A. Both are statistics.
B. 73% is a parameter and 68% is a statistic.
C. 73% is a statistic and 68% is a parameter.

3. Which sample size will give the least bias to a statistic?
A. n = 100
B. n = 500
C. We don't know.

Reference no: EM137691

Questions Cloud

The rules of probability : Which of the following models satisfies the rules of probability and The event corresponding to the above system functioning properly during one period of operation is

Probability distribution : Probability distribution described by the following density curve and The expected value of the sum of the weights of the two oranges, in pounds

Find the probability of getting a head and rolling a six : Find the probability of getting a head and rolling a six

Biggest problem facing education today : Survey on What do you think is the biggest problem facing education today. One problem with exit polls may be that the wrong "key precincts" were chosen.

Find a simple random sample of 50 freshmen : They wish to conduct a survey of their students and find a simple random sample of 50 Freshmen, 40 Sophomores, 35 Juniors, and 30 Seniors.

Smallest standard deviation to the statistic : Assuming the population is large, which sample size will give the smallest standard deviation to the statistic and select the numbers for the first five to be interviewed.

Example on sampling variability : Sampling variability refers to the idea that different samples will include different individuals

Observational and sample study : A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car

What is the explanatory variable in this study : Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.

User Account

All Pages