5. Your statistics class has 30 students. You want to call...

5. Your statistics class has 30 students. You want to call an SRS of 5 students from your class to ask where they use a computer for the online exercises. You label the students 01, 02,..., 30. You enter the table of random digits at this line: 14459 26056 31424 80371 65103 62253 22490 61181 Your SRS contains the students labeled (a) 14, 45, 92, 60, 56 (b) 14, 31, 03, 10, 22 (c) 14, 03, 10, 22, 22 (d) 14, 03, 10, 22, 06 (e) 14, 03, 10, 22, 11

Transcript

00:01 So your statistics class is 30 students, and you want to use a simple random sample of five students to ask where they use a computer for their online assignments.

00:18 And we are going to use a line from a random number generator.

00:24 So here's our line from the random number generator.

00:27 And you're going to take your 30 students and you're going to number them, from 0 -1 to 30.

00:35 And we want to know which of these answer selections would be the numbers of the people you select in your simple random sample.

00:44 So when we are using a random number -generated line out of a random number -generated table, we have to look at the sample size.

00:55 And our sample size was 30.

00:57 And we're numbering from 0 -1 up to 30.

01:02 So therefore, anything over 30 is not going to be assigned to our student.

01:11 So as you look here, this number is over 30, this number's over 30, this number's over 30, and this number's over 30.

01:19 So it cannot be choice a.

01:22 As i look at the second option, this number is over 30.

01:29 So it can't be choice b.

01:33 And then the remaining ones all have numbers smaller than 30.

01:37 So the next thing you have to think about is once you assign them a number and select them, they won't be selected a second time.

01:47 So we can eliminate this option because of the fact that we've already chosen person number 22, so we would not choose them again.

01:58 So now we're down to two options.

02:01 Here.

02:03 Because there are 30 students and 30 is a two -digit number, we will take our random number generator line of data and we'll break them into two numbers at a clip...

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