c) State which sampling method used in the following scenariosi. Select the first 19 customers who enter building.ii. Select 40 students in each distriet in proportion of how many students are in eachdistrictiii. Randomly select 30 customers by assigning each customer a number, then selectingcustomers based on which number appears in a random numbers table.iv. Take note of every fifth car passing over a bridge.

Sampling: It is a technique of selecting individual members or a subset of the population to make…

Answered: c) State which sampling method used in…

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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3) A principal of a local high school wants to select 30 students from a student body of 600 students. He wants the proportion of students in each grade level to be the same in the sample as it is in the entire school. Describe how he could make a stratified sample if there are 100 freshmen, 160 sophomores, 200 juniors, and 140 seniors. Show all work. Write final answer in sentence form. o
Chemistry grades 2A are Brown 70, John 85, Christ 99, Ryan 56, Dovy 87, Megan 48, Zory 77, Vroy 65, Hyu 88, and Sue 86. If 6 samples are taken, what is the sampling error? is error in sampling still tolerable?
Our local movie theater polls its customers about their favorite candy to eat during the movie. Name each sampling method described. a. Employees ask every 45th customer that purchases a movie ticket b. An employee divides the theater into sections: left, right, front, back. He/she randomly chooses a section and polls every customer within that section
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Sony wants to administer a satisfaction survey to its current customers. Using their customer database, the company randomly selects 90 customers and asks them about their level of satisfaction with the company. What type of sampling is used? O A. Systematic O B. Stratified O C. Convenience O D. Simple random O E. Cluster
Catherine Chao, Director of Marketing Research, needs a sample of households to participate in the testing of a new toothpaste package. She directs the seven members of her staff to find five households each. Catherine's sample is a cluster sample proportionate stratified sample quota sample disproportionate stratified sample simple random sample O O O
From the given scenario, define the population proportion. In 2019, a national survey organization asked the question "Do you go on more than two vacations per year?" to a random sample of 2,000 Americans. 580 responded "Yes", while the other 1,420 people responded "No". Group of answer choices: A) the proportions of the sampled Americans who go on more than two vacations per year B) the proportion of all Americans who go on more than two vacations per year C) the 1,420 people who responded "No" D) the 2,000 Americans
PREREQUISITE. Determine the percentage of the following numbers. a. 20 is what percent of 100? b. 30 is what percent of 600? ENGAGEMENT: You are to conduct a sampling method using SHS students as your respondents. Using Slovin's formula, calculate how many respondents should be your sampling size in each strand if you are given 10% allowable error. Show your solutions. STRAND ABM GAS HUMMS ICT STEM POPULATION SIZE 162 371 190 53 145 SAMPLING SIZE
As part of a class project a teacher brings a large jar containing 200 gum balls of 2 different colors, white and green to class. A student draws a sample of 20 gum balls, of which 4 are white and 16 are green. The students job is to estimate how many of the gum balls are white. A.) Use the sample to estimate the % of white gum balls in the jar. B.) Give the sampling proportion as a %. C.) If there were 60 white gum balls in the jar, give the parameter of white gum balls in the jar as a %. D.) Give the sampling error as a percent.
Determine which Sample Type is used in the following scenarios. President Biden want to survey the nation about their incomes. He contacts the IRS and has them put everyone who filed taxes last year into a data base. He then groups tax filers based on their filing status, Single, Married filing separate, and married filing jointly. He then selects 5000 people from each group using a random generator to survey.
I In a single sampling application, the lot size is 1,400 and the sample size is 100 and c=5. The average total inspection number is calculated as 121,58. Calculate the AOQ.
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