Q. 12 Apartment living You are plannin... [FREE SOLUTION]

91影视

The Practice of Statistics for AP Examination

Daren Starnes, Josh Tabor

$Math Studyset 91影视 Explanations$ Math

6th Edition 路 837 pages

ISBN: 9781319113339

Chapter 4: Q. 12 (page 237)

Apartment living You are planning a report on apartment living in a college town. You decide to select three apartment complexes at random for in-depth interviews with residents.
a. Explain how you would use a line of Table D to choose an SRS of $3$ complexes from the following list.
b. Use line $117$ to select the sample. Show how you use each of the digits.

Short Answer

Expert verified

a. Number the $33$ complexes from $01$ to $33$ alphabetically.

b. Starting at line $117$ we read off the following numbers: $38$ (ignore) $16 79$ (ignore) $85$ (ignore) $32 62$ (ignore) $18$

Step by step solution

Part (a) Step 1 : Given information

No. of apartment complex , $n = 3$

We have to choose an SRS of $3$ apartment complex from the given list apartment complex name:

Part (a) Step 2 : Simplification

Number the $33$ complexes from $01$ to $33$ alphabetically. Go to the random number table, choose a starting point (any line, such as line $117$ ) and recorded $2$ digit numbers until you have $3$ unique numbers between $01$ and $33$ , ignoring repeats, $00$ , and $31 - 99$ .

Part (b) Step 1 : Given information

We have to use line 117 to select the sample to show how we have used each of the digits from the following table :

Part (b) Step 2 : Simplification

Starting at line $117$ we read off the following numbers: $38$ (ignore) $16$ $79$ (ignore) $85$ (ignore) $32 62$ (ignore) $18$ . So we have picked: Fairington ( $16$ ), Waterford Court ( $32$ ) and Fowler ( $18$ )