Consider again the electronics manufacture from Question 1. Another employee, on a different day, decides to take her own simple random sample (not using cluster or stratified) and she selects n = 20 voltmeters from the population. What is the probability that she would select at least 1 digital voltmeter from her sample of 20? *I only am looking for Q2, I have already figured out Q1.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
100%

Consider again the electronics manufacture from Question 1.
Another employee, on a different day, decides to take her own simple random sample (not using cluster or stratified) and she selects n = 20 voltmeters from the population.
What is the probability that she would select at least 1 digital voltmeter from her sample of 20?

*I only am looking for Q2, I have already figured out Q1.

 

Question 1
An electronics manufacturer wishes to perform a quality control on its voltmeters, and
wants to specifically make sure that it includes a portion of its digital voltmeters in its
sample. In its population, analog voltmeters comprise 95% of all voltmeters produced,
but digital voltmeters comprise only 5% of all voltmeters produced.
A quality control engineer's sample consists of 2 digital voltmeters and 38 analog
voltmeters.
Which of the following best describes the type of sample that was likely taken?
A cluster sample technique was used, but a simple random sample was not taken.
A stratified sample technique was used, and a simple random sample was taken.
A stratified sample technique was used, but a simple random sample was not taken.
None of the above.
Question 2
Consider again the electronics manufacture from Question 1.
Another employee, on a different day, decides to take her own simple random sample
(not using cluster or stratified) and she selects n = 20 voltmeters from the population.
What is the probability that she would select at least 1 digital voltmeter from her sample
of 20?
Transcribed Image Text:Question 1 An electronics manufacturer wishes to perform a quality control on its voltmeters, and wants to specifically make sure that it includes a portion of its digital voltmeters in its sample. In its population, analog voltmeters comprise 95% of all voltmeters produced, but digital voltmeters comprise only 5% of all voltmeters produced. A quality control engineer's sample consists of 2 digital voltmeters and 38 analog voltmeters. Which of the following best describes the type of sample that was likely taken? A cluster sample technique was used, but a simple random sample was not taken. A stratified sample technique was used, and a simple random sample was taken. A stratified sample technique was used, but a simple random sample was not taken. None of the above. Question 2 Consider again the electronics manufacture from Question 1. Another employee, on a different day, decides to take her own simple random sample (not using cluster or stratified) and she selects n = 20 voltmeters from the population. What is the probability that she would select at least 1 digital voltmeter from her sample of 20?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON