Homework Answers
In cluster sampling, the researcher divides the population into separate groups, called clusters. Then, a simple random sample of clusters is selected from the population.
Here we'll divide the population in hardcover books, and paperback books. Then a simple random sample of 250 books is taken from each of the clusters.
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Consider the previous question. Suppose the students has been told to specifically take a random sample...
Suppose we want to estimate the average weight of children in a particular school district. The...
Suppose we want to estimate the average weight of children in a particular school district. The district contains 15 elementary schools, 10 middle schools, and 2 high schools. For each of the following approaches, select the best description of the sampling design, and identify whether the sampling scheme ensures that the probability of being included is necessarily the same for every student. Take a simple random sample of 5 schools in the district. For each school in the sample, list...
For this question:- Take a simple random sample of 5 schools in the district. For each...
For this question:- Take a simple random sample of 5 schools in the district. For each school in the sample, list all the homerooms. Take a simple random sample of 3 homerooms from each school in the sample. For each homeroom in the sample, list the students. Take a simple random sample of 10 students from each homeroom in the sample. List their weights. Combine the lists and average the results. I answered "a random stratified multistage random cluster sample"...
Consider that I have 4 sections of Stat 200. Section 001 has 40 students, section 002...
Consider that I have 4 sections of Stat 200. Section 001 has 40 students, section 002 has 40 students, section 003 has 30 students and section 004 has 40 for a total of 150 students. I'd like to do a satisfaction survey with a sample size of 30, but I suspect that the section may change students' satisfaction with the course. a. Which sampling techniques could I use to ensure I get a representative sample from each section? (Check the...
4 pts Question 6 Suppose that researchers are interested in comparing average sugar intake among young...
4 pts Question 6 Suppose that researchers are interested in comparing average sugar intake among young adults (ages 18-35), middle-aged adults (ages 36-55) and senior citizens (ages 56 and over) in Hillsborough County. To collect data, they consult a Hillsborough County registry and randomly select 1,000 respondents from each age category to receive a mail-in survey. Identify the samplingſtechnique used. O Stratified random sampling O Cluster sampling Systematic sampling Simple random sampling
Thank you. very much Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10...
Thank you. very much
Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10 (2 complete) This Quiz: 10 pts Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. Lettuce is planted on a 45-acre field. The field is divided into one-acre subplots. A sample is taken from each subplot to estimate the harvest. What type of sampling is used? O A. Stratified sampling is used, since the field is divided into subplots...
Question 17 1 pts Classify the type of data that would be given as a response...
Question 17 1 pts Classify the type of data that would be given as a response to the weight of your backpack. Quantitative-discrete Quantitative-continuous Qualitative Question 18 1 pts Determine the type of sampling used. A De Anza English instructor randomly selects three EWRT 1A classes and then interviews all students in those three classes to determine the average number of required books for EWRT 1A classes carried by EWRT 1A students at De-Anza College. Cluster Simple Random Stratified Systematic
A survey was conducted on 30 random students of a school on their food preference and how they wa...
A survey was conducted on 30
random students of a school on their food preference and how they
wanted it cooked.
Food Preference
Pork -5
Beef-8
Chicken-11
Vegetables-5
Fish-1
How they want it cooked
Fried-10
saute-4
grill-10
roasted-6
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
**
MAKE A FREQUENCY DISTRIBUTION
Procedure Table Conducting a Sample Survey Step 1 Decide what information...
(1 point) For each problem, select the best response. (a) A simple random sample of size...
(1 point) For each problem, select the best response. (a) A simple random sample of size n is defined to be A. a sample of size n chosen in such a way that every unit in the population has the same chance of being selected. B. a sample of size n chosen in such a way that every set of n units in the population has an equal chance to be the sample actually selected. C. a sample of size...
1 point) For each problem, select the best response. (a) A simple random sample of size...
1 point) For each problem, select the best response. (a) A simple random sample of size n is defined to be A. a sample of size n chosen in such a way that every unit in the population has a known nonzero chance of being selected. B. a sample of size n chosen in such a way that every unit in the population has the same chance of being selected. C. a sample of size n chosen in such a...
#6 weekend before the final exam week. Her assistant took a random sample of 250 stadents...
#6
weekend before the final exam week. Her assistant took a random sample of 250 stadents The answer on "whether you visited campus bars on the weekend before the final exam week" from students in the sample is an example of A) a table of random numbers C) a categorical variable B) a continuous variable D) a discrete variable 3) 3) Which of the following is NOT a reason for the need for sampling? A) It is always more informative...
4 pts Question 6 Suppose that researchers are interested in comparing average sugar intake among young adults (ages 18-35), middle-aged adults (ages 36-55) and senior citizens (ages 56 and over) in Hillsborough County. To collect data, they consult a Hillsborough County registry and randomly select 1,000 respondents from each age category to receive a mail-in survey. Identify the samplingſtechnique used. O Stratified random sampling O Cluster sampling Systematic sampling Simple random sampling
Thank you. very much
Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10 (2 complete) This Quiz: 10 pts Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. Lettuce is planted on a 45-acre field. The field is divided into one-acre subplots. A sample is taken from each subplot to estimate the harvest. What type of sampling is used? O A. Stratified sampling is used, since the field is divided into subplots...
Question 17 1 pts Classify the type of data that would be given as a response to the weight of your backpack. Quantitative-discrete Quantitative-continuous Qualitative Question 18 1 pts Determine the type of sampling used. A De Anza English instructor randomly selects three EWRT 1A classes and then interviews all students in those three classes to determine the average number of required books for EWRT 1A classes carried by EWRT 1A students at De-Anza College. Cluster Simple Random Stratified Systematic
A survey was conducted on 30
random students of a school on their food preference and how they
wanted it cooked.
Food Preference
Pork -5
Beef-8
Chicken-11
Vegetables-5
Fish-1
How they want it cooked
Fried-10
saute-4
grill-10
roasted-6
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
**
MAKE A FREQUENCY DISTRIBUTION
Procedure Table Conducting a Sample Survey Step 1 Decide what information...
#6
weekend before the final exam week. Her assistant took a random sample of 250 stadents The answer on "whether you visited campus bars on the weekend before the final exam week" from students in the sample is an example of A) a table of random numbers C) a categorical variable B) a continuous variable D) a discrete variable 3) 3) Which of the following is NOT a reason for the need for sampling? A) It is always more informative...
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