Elementary Statistics: A Step By Step Approach
Elementary Statistics: A Step By Step Approach
10th Edition
ISBN: 9781259755330
Author: Allan G. Bluman
Publisher: McGraw-Hill Education
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Chapter 9.4, Problem 5E

(a)

To determine

To find: The p^ and q^ .

(a)

Expert Solution
Check Mark

Answer to Problem 5E

The value of p^1 , p^2 , q^1 and q^2 is 0.5, 0.44, 0.5 and 0.56, respectively.

Explanation of Solution

Given info:

X1=25 , n1=75 , X2=40 and n2=90 .

Calculation:

The value of p^1 is,

p^1=X1n1=2575=0.5

The value of q^1 is,

q^1=1p^1=10.5=0.5

The value of p^2 is,

p^2=X2n2=4090=0.44

The value of q^2 is,

q^2=1p^2=10.44=0.56

Thus, the value of p^1 , p^2 , q^1 and q^2 is 0.5, 0.44, 0.5 and 0.56, respectively.

(b)

To determine

To find: The p^ and q^ .

(b)

Expert Solution
Check Mark

Answer to Problem 5E

The value of p^1 , p^2 , q^1 and q^2 is 0.6, 0.4, 0.35 and 0.65, respectively.

Explanation of Solution

Given info:

X1=9 , n1=15 , X2=7 and n2=20 .

Calculation:

The value of p^1 is,

p^1=X1n1=915=0.6

The value of q^1 is,

q^1=1p^1=10.6=0.4

The value of p^2 is,

p^2=X2n2=720=0.35

The value of q^2 is,

q^2=1p^2=10.35=0.65

Thus, the value of p^1 , p^2 , q^1 and q^2 is 0.6, 0.4, 0.35 and 0.65, respectively.

(c)

To determine

To find: The p^ and q^ .

(c)

Expert Solution
Check Mark

Answer to Problem 5E

The value of p^1 , p^2 , q^1 and q^2 is 0.15, 0.85, 0.125 and 0.875, respectively.

Explanation of Solution

Given info:

X1=3 , n1=20 , X2=5 and n2=40 .

Calculation:

The value of p^1 is,

p^1=X1n1=320=0.15

The value of q^1 is,

q^1=1p^1=10.15=0.85

The value of p^2 is,

p^2=X2n2=540=0.125

The value of q^2 is,

q^2=1p^2=10.125=0.875

Thus, the value of p^1 , p^2 , q^1 and q^2 is 0.15, 0.85, 0.125 and 0.875, respectively.

(d)

To determine

To find: The p^ and q^ .

(d)

Expert Solution
Check Mark

Answer to Problem 5E

The value of p^1 , p^2 , q^1 and q^2 is 0.42, 0.58, 0.64 and 0.36, respectively.

Explanation of Solution

Given info:

X1=21 , n1=50 , X2=32 and n2=50 .

Calculation:

The value of p^1 is,

p^1=X1n1=2150=0.42

The value of q^1 is,

q^1=1p^1=10.42=0.58

The value of p^2 is,

p^2=X2n2=3250=0.64

The value of q^2 is,

q^2=1p^2=10.64=0.36

Thus, the value of p^1 , p^2 , q^1 and q^2 is 0.42, 0.58, 0.64 and 0.36, respectively.

(e)

To determine

To find: The p^ and q^ .

(e)

Expert Solution
Check Mark

Answer to Problem 5E

The value of p^1 , p^2 , q^1 and q^2 is 0.42, 0.58, 0.64 and 0.36, respectively.

Explanation of Solution

Given info:

X1=20 , n1=150 , X2=30 and n2=50 .

Calculation:

The value of p^1 is,

p^1=X1n1=20150=0.13

The value of q^1 is,

q^1=1p^1=10.13=0.87

The value of p^2 is,

p^2=X2n2=3050=0.6

The value of q^2 is,

q^2=1p^2=10.6=0.4

Thus, the value of p^1 , p^2 , q^1 and q^2 is 0.13, 0.87, 0.64 and 0.4, respectively.

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Chapter 9 Solutions

Elementary Statistics: A Step By Step Approach

Ch. 9.1 - For Exercises 5 through 16, perform each of the...Ch. 9.1 - For Exercises 5 through 16, perform each of the...Ch. 9.1 - For Exercises 5 through 16, perform each of the...Ch. 9.1 - Prob. 13ECh. 9.1 - For Exercises 5 through 16, perform each of the...Ch. 9.1 - Self-Esteem Scores In a study of a group of women...Ch. 9.1 - Ages of College Students The dean of students...Ch. 9.1 - Working Breath Rate Two random samples of 32...Ch. 9.1 - Traveling Distances Find the 95% confidence...Ch. 9.1 - Prob. 19ECh. 9.1 - Prob. 20ECh. 9.1 - Television Watching The average number of hours of...Ch. 9.1 - For Exercises 5 through 16, perform each of the...Ch. 9.1 - Prob. 23ECh. 9.1 - Home Prices According to the almanac, the average...Ch. 9.1 - Exam Scores at Private and Public Schools A...Ch. 9.1 - Sale Prices for Houses The average sales price of...Ch. 9.1 - Average Earnings for College Graduates The average...Ch. 9.2 - Too Long on the Telephone A company collects data...Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - Prob. 3ECh. 9.2 - Prob. 4ECh. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - Prob. 9ECh. 9.2 - Find the 95% confidence interval for the...Ch. 9.2 - Prob. 11ECh. 9.2 - Prob. 12ECh. 9.2 - Prob. 13ECh. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - Ages of Homes Whiting, Indiana, leads the Top 100...Ch. 9.2 - Prob. 17ECh. 9.2 - Out-of-State Tuitions The out-of-state tuitions...Ch. 9.2 - Gasoline Prices A random sample of monthly...Ch. 9.2 - For these exercises, perform each of these steps....Ch. 9.2 - Prob. 21ECh. 9.2 - Prob. 22ECh. 9.3 - Air Quality As a researcher for the EPA, you have...Ch. 9.3 - Classify each as independent or dependent samples....Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - Toy Assembly Test An educational researcher...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - For Exercises 2 through 12, perform each of these...Ch. 9.3 - Prob. 13ECCh. 9.4 - Smoking and Education You are researching the...Ch. 9.4 - Prob. 1ECh. 9.4 - Find p and q for each. a. n = 36, X = 20 b. n =...Ch. 9.4 - Prob. 3ECh. 9.4 - Find each X, given p. a. p = 0.24, n = 300 b. p =...Ch. 9.4 - Prob. 5ECh. 9.4 - Find p and q. a. 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Assume...Ch. 9 - Prob. 9.1.2RECh. 9 - Prob. 9.2.3RECh. 9 - Prob. 9.2.4RECh. 9 - For each exercise, perform these steps. Assume...Ch. 9 - For each exercise, perform these steps. 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