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Activity 1: Illustrating Hypothesis Directions: Explicate a null hypothesis and its alternative hypothesis in (a) words and in (b) symbols for each of the following. Tell whether the test is directional and non-directional. 1. A librarian of a school claims that all their senior high school students read an average of 10 books a month. A random sample of senior high students read an average 12 books. The confidence statement is 95%. 2. According to a factory employer, the mean working time of workers in the factory is 6. A researcher interviewed 50% of the employees and found out that their mean working time is 8 hours. The a level is 0.05. 3. A random sample of 200 students got a mean score of 62 in a knowledge test in mathematics. In the standardization of the test, µ = 50.

Activity 1: Illustrating Hypothesis Directions: Explicate a null hypothesis and its alternative hypothesis in (a) words and in (b) symbols for each of the following. Tell whether the test is directional and non-directional. 1. A librarian of a school claims that all their senior high school students read an average of 10 books a month. A random sample of senior high students read an average 12 books. The confidence statement is 95%. 2. According to a factory employer, the mean working time of workers in the factory is 6. A researcher interviewed 50% of the employees and found out that their mean working time is 8 hours. The a level is 0.05. 3. A random sample of 200 students got a mean score of 62 in a knowledge test in mathematics. In the standardization of the test, µ = 50.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 30E
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Activity 1: Illustrating Hypothesis Directions: Explicate a null hypothesis and its alternative hypothesis in (a) words and in (b) symbols for each of the following. Tell whether the test is directional and non-directional. 1. A librarian of a school claims that all their senior high school students read an average of 10 books a month. A random sample of senior high students read an average 12 books. The confidence statement is 95%. 2. According to a factory employer, the mean working time of workers in the factory is 6. A researcher interviewed 50% of the employees and found out that their mean working time is 8 hours. The a level is 0.05. 3. A random sample of 200 students got a mean score of 62 in a knowledge test in mathematics. In the standardization of the test, µ = 50.
Transcribed Image Text:Activity 1: Illustrating Hypothesis Directions: Explicate a null hypothesis and its alternative hypothesis in (a) words and in (b) symbols for each of the following. Tell whether the test is directional and non-directional. 1. A librarian of a school claims that all their senior high school students read an average of 10 books a month. A random sample of senior high students read an average 12 books. The confidence statement is 95%. 2. According to a factory employer, the mean working time of workers in the factory is 6. A researcher interviewed 50% of the employees and found out that their mean working time is 8 hours. The a level is 0.05. 3. A random sample of 200 students got a mean score of 62 in a knowledge test in mathematics. In the standardization of the test, µ = 50.
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