Answered: Activity 1: Fix Me Up! Directions:…

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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Question

Activity 1: Fix Me Up!
Directions: Arrange in chronological order the given steps in solving
hypothesis. (Use numbers 1 to 7 to arrange the steps)
A. Identify the level of significance
B. Select the appropriate test statistic
C. Draw a decision
D. Formulate the Hypotheses
E. Compute for the test statistic
F. Compare the probability value and significance level
G. Identify the rejection area
Activity 2: Decide for the Best!
Direction: Perform hypothesis test for the following.
1. The X Last Company has developed a new battery. The engineering
department of the cornpany claims that each battery lasts for 200 minutes.
In order to test this claim, the company selects a random of 100 new
batteries so that this sample has a mean of 190 minutes with a standard
deviation of 30 minutes. Test the engineering department claim that the
new batteries run with an average of 200 minutes. Use a 0.01 level of
significance.
Solution:
a. State the Null and Alternative Hypotheses
Ho:
H1:
b. What is the level of significance? a =
c. Identify the rejection regions. Za =
2.
d. Calculate the test statistics. Z =
e. What will be the decision rule?
f. Draw the conclusion:
Prepared hr:

Transcribed Image Text:Activity 1. Formulate Me! Directions: Write the Null and alternative hypothesis for each of the following population proportion. 1. Some boxes of a certain brand of breakfast cereal include a voucher for a free video rental inside the box. The company that makes the cereal claims that a voucher can be found in 20% of the boxes. However, based on their experiences eating this cereal at home, a group of students believe that the proportion of boxes with vouchers is less than 0.2. This group of students purchased 65 boxes of the cereal to investigate the company's clam. Но : H1: 2. Haus of Gaz claims that more than two-thirds of the houses in a certain subdivision use their brand. Do we have a reason to claim if in a random sample of 40 houses in this subdivision, it is found that 25 use the company's brand. Но : H1: 3. A pharmacy claims that 9 out of 10 doctors recommend Ibuprofen to combat migraine. To test this claim, a random sample of 400 doctors is obtained so that only 320 of them indicate that they recommend Ibuprofen. Ve UO UCI JOF 096 HO: abeo or to nothogonq srif sd g Janodulce 4. A factory, producing mobile chargers, claims that at least 95% of the mobile chargers they produced are not defective. A random sample of 100 mobile chargers were tested and 93 were found to be not defective. bouogyolg srl ni yele aliqug ni vsta Jon ob ziiqua E H1: Но: H1: 5. A barangay captain claims that less than 50% of its constituents are dissatisfied with the distribution of relief goods. Test this claim by using the sample data obtained from a survey of 300 families where 54% indicated their dissatisfaction. Но: H1: madic bas te

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