Question

Exercises 5–8 refer to the study of an association between which ear is used for cell...

Exercises 5–8 refer to the study of an association between which ear is used for cell phone calls and whether the subject is left-handed or right-handed. The study is reported in “Hemispheric Dominance and Cell Phone Use,” by Seidman et al., JAMA Otolaryngology—Head & Neck Surgery, Vol. 139, No. 5. The study began with a survey e-mailed to 5000 people belonging to an otology online group, and 717 surveys were returned. (Otology relates to the ear and hearing.)

5. Sampling Method What type of sampling best describes the way in which the 717 subjects were chosen: simple random sample, systematic sample, convenience sample, stratified sample, cluster sample? Does the method of sampling appear to adversely a¥ect the quality of the results?

Why is this convience sampling and not stratified

Don’t they share the same characteristic they all belong to an otology group?

Homework Answers

Answer #1

(1) Type of sampling method used: Convenience sampling:

REASON: Convenience sampling is a non-probability sampling technique where theresearcher just selects the items because of their convenient accessibility and proximity. Here, the researcher does not apply any probability samplingtechniques. He just collects the samples from "otology online group".

(2) Reason why it is not stratified sampling: In stratified sampling, the reasearcher divides the entire population into different subgroups, called strata and then selects the subjects proportionately from the different strata. Here, the researcher has got only one group, " otology online group" and hence, cannot be stratified sampling.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6982 subjects randomly selected from an online group involved with ears. There were 1315 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution.
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6969 subjects randomly selected from an online group involved with ears. There were 1326 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution.
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6989 subjects randomly selected from an online group involved with ears. There were 1328 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution.
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6999 subjects randomly selected from an online group involved with ears. There were 1316 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution. What is The test statistic?
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6990 subjects randomly selected from an online group involved with ears. There were 1348 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis. Identify the P Value
In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed...
In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6987 subjects randomly selected from an online group involved with ears. There were 1500 surveys returned. Use a 0.01 significance level to test the claim that the return rate is greater than 20%. Use the P-Value method and use the normal distribution as an approximation to the binomial distribution. (Hint: may use the appropriate calculator function). (I have a TI-84 calculator).
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6955 subjects randomly selected from an online group involved with ears. There were 1307 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution. The test statistic is z = ____ ​(Round to two decimal places as​ needed.)...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 2662 subjects randomly selected from an online group involved with ears. 1018 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys. ​a) Find the best point estimate of the population proportion p. ​(Round to three decimal places as​ needed.) ​b) Identify the value of the margin of error E. ​(Round to three decimal places as​ needed.) ​c) Construct...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 2353 subjects randomly selected from an online group involved with ears. 965 surveys were returned. Construct a 95​% confidence interval for the proportion of returned surveys. ​a) Find the best point estimate of the population proportion p. ________? ​(Round to three decimal places as​ needed.) ​b) Identify the value of the margin of error E. E=______? ​(Round to three decimal places as​ needed.)...
9. In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​...
9. In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6978 subjects randomly selected from an online group involved with ears. There were 1286 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than​ 20%. Use the​ P-value method and use the normal distribution as an approximation to the binomial distribution. __________________________ Identify the null hypothesis and alternative hypothesis. A. H0​: p=0.2 H1​: p<0.2...