in the class roster you have 48 students , construct a sample of size 6 using...

in the class roster you have 48 students , construct a sample of size 6 using each method and provide explanation of how you arrived at the answer.

a. Simple Random Sample: (Give the names and numbers)

Description of how sample was obtained:

b. Stratified Sample: (give the list of names)

Description of how sample was obtained: (include what the strata were)

c. Cluster Sample: (give the list of names)

Description of how sample was obtained: (include what the clusters were)
d. Systematic Sample: (give the list of names)

Description of how sample was obtained:
e. Convenience Sample: (give the list of names)
Description of how sample was obtained:

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Suppose you have a sample of size 30 with a mean of 48 and a population...

Suppose you have a sample of size 30 with a mean of 48 and a population standard deviation of 13.1. What is the maximal margin of error associated with a 95% confidence interval for the true population mean? In your calculations, use z = 2. Give your answer as a decimal, to two places m = ounces

In a random sample of 125 students, you find that 15 have tattoos (that’s 12%). Construct...

In a random sample of 125 students, you find that 15 have tattoos (that’s 12%). Construct a 95% confidence interval for the true population proportion of students that have tattoos.

There are 48 students in an elementary statistics class. On the basis of years of experience,...

There are 48 students in an elementary statistics class. On the basis of years of experience, the instructor knows that the time needed to grade a randomly chosen first examination paper is a random variable with an expected value of 5 min and a standard deviation of 4 min. (Round your answers to four decimal places.) (a) If grading times are independent and the instructor begins grading at 6:50 P.M. and grades continuously, what is the (approximate) probability that he...

Assume that you have a sample of n1=7, with the sample mean X1=48, and a sample...

Assume that you have a sample of n1=7, with the sample mean X1=48, and a sample standard deviation of s1=7, and you have an independent sample of n2=5 from another population with a sample mean x2=32 and the sample deviation s2=8. Assuming the population variances are equal, at 0.01 level of significance, is their evidence that u1>u2. Calculate the p value. Show work please

Assume that you have a sample of n1=8, with the sample mean X1=48, and a sample...

Assume that you have a sample of n1=8, with the sample mean X1=48, and a sample standard deviation of S1=5, and you have an independent sample of n2=14 from another population with a sample mean of X2=33, and the sample standard deviation S2=8. Construct a 90% confidence interval estimate of the population mean difference between mu 1 μ1 and mu 2 μ2. Assume that the two population variances are equal.

6 a) You and your friend are in a class with 12 students. For a project,...

6 a) You and your friend are in a class with 12 students. For a project, the class is randomly divided into two equal groups. “Randomly” means all divisions are equally likely. What is the probability that you and your friend end up in the same group? 6 b) Revisit part a). Calculate the probability that you and your friend will end up in the same group if the class is divided into three equal groups instead.

Assume that in a statistics class 48% of the students are in third year. Further, 49%...

Assume that in a statistics class 48% of the students are in third year. Further, 49% of the students in third year are Male, and 53% of the students in a year other than third are Female. A. If a student is randomly selected, what is the probability she is Female and is in third year? B. If a student is randomly selected, what is the probability he is Male but not in third year? C. If a student is...

Suppose you gather a sample size of 20 widgets and construct a 99% confidence interval for...

Suppose you gather a sample size of 20 widgets and construct a 99% confidence interval for the mean number of widgets. Assuming this research follows approximately normal with unknown mean and variance, what would be the value of the distribution percentage point that I would use when constructing this interval? Thanks for answering!

Suppose you have a sample of 50 and a sample proportion of 0.35. Construct a 99%...

Suppose you have a sample of 50 and a sample proportion of 0.35. Construct a 99% confidence interval for the population proportion.

Suppose 48% of the population has a retirement account. If a random sample of size 632...

Suppose 48% of the population has a retirement account. If a random sample of size 632 is selected, what is the probability that the proportion of persons with a retirement account will differ from the population proportion by greater than 3%? Round your answer to four decimal places.

Subjects