III. Answer the following problem. Show your complete solution on the space provided. Answers without solution will be consider as incorrect. 1. According to a study done last year, the average monthly expenses for mobile phone loads of high school students in Manila was Php350.00. A statistics student believes that this amount has increased since January of this year. Is there a reason to believe that this amount has really increased if a random sample of 60 students has an average monthly expense for mobile phone loads of Php380.00? Use a 0.05 level of significance. Assume that the population standard deviation is Php77.00. Solution: Step 1: State the hypothesis. Но: Ha: Step 2: The level of significance and critical value. Level Significance a =, zcritical = Туре of test. Step 3: Compute for the value of one sample z test. zcomputed = Step 4: Decision rule. Step 5: Conclusion.

III. Answer the following problem. Show your complete solution on the space provided. Answers without solution will be consider as incorrect. 1. According to a study done last year, the average monthly expenses for mobile phone loads of high school students in Manila was Php350.00. A statistics student believes that this amount has increased since January of this year. Is there a reason to believe that this amount has really increased if a random sample of 60 students has an average monthly expense for mobile phone loads of Php380.00? Use a 0.05 level of significance. Assume that the population standard deviation is Php77.00. Solution: Step 1: State the hypothesis. Но: Ha: Step 2: The level of significance and critical value. Level Significance a =, zcritical = Туре of test. Step 3: Compute for the value of one sample z test. zcomputed = Step 4: Decision rule. Step 5: Conclusion.

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Description: III. Answer the following problem. Show your complete solution on the spaceprovided. Answers without solution will be consider as incorrect.1. According to a study done last year, the average monthly expenses for mobilephone loads of high school stu

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

III. Answer the following problem. Show your complete solution on the space
provided. Answers without solution will be consider as incorrect.
1. According to a study done last year, the average monthly expenses for mobile
phone loads of high school students in Manila was Php350.00. A statistics student
believes that this amount has increased since January of this year. Is there a
reason to believe that this amount has really increased if a random sample of 60
students has an average monthly expense for mobile phone loads of Php380.00?
Use a 0.05 level of significance. Assume that the population standard deviation is
Php77.00.
Solution:
Step 1: State the hypothesis.
Но:
На:
Step 2: The level of significance and critical value.
Level Significance a
zcritical =
Туре of test.
Step 3: Compute for the value of one sample z test.
zcomputed =
Step 4: Decision rule.
Step 5: Conclusion.

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