Lesson:Hypothesis Testing: Testing the Population Mean 2. One of the undersecretaries of the Department of Labor and Employment (DOLE) claims that theaverage salary of a civil engineer is Php 18,000. A sample of 19 civil engineer's salary has a mean ofPhp 17,350 and a standard deviation of Php 1,230. Is there enough evidence to reject theundersecretary's claim at a = 0.01?Solution:Step 1: Null and alternative hypothesisHo:H₂:[Step 2: Significance levela =Step 3: Test statistic:Step 4: Decision rule:Step 5: Decision:

Answered: Image /qna-images/answer/d003d9a7-9614-4497-aa9b-a73c015d5325.jpg

Answered: 2. One of the undersecretaries of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Help!
Explain with example t Test for Two Population Means: Independent Samples (EPO Experiment).
Instruction: Show the step by step procedure in solving the problem. DO NOT USE Microsoft Excel.Problem: A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sample of 8 cereal bars of this brand, the saturated fat content was 0.6, 0.7, 0.7, 0.3, 0.4, 0.5, 0.4, and 0.2. Would you agree with the claim? Assume a normal distribution.
QUESTION: Use the data 056, 084, 066, 055, 071, 064, 072, 130, 138, 113, 115, 093, 089, 119, 081, 084, 108, 114, 063, 082, 124, 058, 092, 067, 066, 106, 076, 114, 127, 070, 130, 050, 056, 095, 096, 140, 109, 078, 108, 066, 112, 115, 064, 107, 093, 057, 054, 077, 121, 094, 060, 094, 071, 081, 065, 109, 053, 080, 075, 085, 136, 094, 082, 115, 093, 107, 053, 104, 077, 139, 114, 112, 053, 056, 126, 081, 060, 129, 103, 135, 054, 065, 105, 078, 127, 074, 062, 103, 116, 121, 078, 062, 059, 129, 119, 132, 113, 102, 088, 131.Compute the following concepts of a descriptive statistics. Measure of dispersion: Absolute measure of dispersion(by five methods). Relative measure of dispersion(by five method). Measure of Skewness: Pearson coefficient of Skewness. Briefly coefficient of Skewness. First moment ratio. Measure of Kurtosis: Second moment ratio. Note : solve all sub parts.
Experiments vs. Observations Your principal stands in the commons each morning and records the number of students she sees with no IDs for two weeks. This is an example of: Select one: O a. controlled experiment O b. survey O c. cluster sample O d. observational study
6. Flu Season The pie chart shown, the type we see in USA Today, depicts the approaches people use to avoid getting the flu. How to Beat the Flu Bug In a recent survey by Kiwanis International and Novartis Vaccines, people were asked, "What do you think is the best way to protect against the flu?" The results: Washing your hands (61%) Getting a flu shot (25%) Taking vitamins (12%) Drinking orange juice (2%) Source: Kiwanis International and Novartis Vaccines. (a) What is the most common approach? What percentage of the population chooses this method? (b) What is the least used approach? What percentage of the population chooses this method? (c) What percentage of the population thinks flu shots are the best way to beat the flu?
Only typing answer Please explain step by step
Need to understand how to solve in excel or using megastat. This is practice exam Suppose Bank of America would like to investigate if the credit score and income level of an individual are independent of one another. Bank of America selected a random sample of 400 adults and asked them to report their credit score range and their income range. The following contingency table presents these results. Credit Score Class Less than 650 650–750 More than 750 Income < $50,000 30 24 27 $50,000 ≤ Income < $100,000 42 47 38 $100,000 ≤ Income < $150,000 49 35 26 Income ≥ $150,000 27 29 26 The expected number of individuals with income between $50,000 and $100,000 and a credit score less than 650 is ________. Multiple Choice 23.5 26.0 31.0 47.0
Answer Task A only
Help!
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within five percentage points of the true population percentage? Complete parts (a) through (c) below. Question content area bottom Part 1 a) Assume that nothing is known about the percentage of adults who have heard of the brand. n=enter your response here (Round up to the nearest integer.)
Multiple Choice Question A study took a random sample of adults and asked them about their bedtime habits. The data showed that people who drank a cup of tea before bedtime were more likely to go to sleep earlier than those who didn't drink tea. What was the population being studied? A. All adults that drink tea before bed B. All Adults C. All People D. All adults that don't drink tea

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS