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 1An electronics manufacturer wishes to perform a quality control on its voltmeters, andwants to specifically make sure that it includes a portion of its digital voltmeters in itssample. 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 analogvoltmeters.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 2Consider 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 sampleof 20?

Given:- n = 20 p = digital voltmeter producedp = 5% =0.05q =1-p = 0.95 we have to calculate…

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.

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...

See similar textbooks

Similar questions

One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 55 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 55 minutes for the cable technician to arrive. The customer asks a simple random sample of 4 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 62.1 minutes with a standard deviation of 8.3 minutes. Assume that the population distribution is approximately normal. Test the customer’s claim at the 0.05 level of significance. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.
A biologist wishes to study the effect of the pollinating number of insects on yields of dates on a large dates farm located in the governorate of Musandam. Using your statistics knowledge, you propose to her that for better inferential statistics she should use systematic random sampling to select a sample of 100 date trees from the 2000 date trees in the farm. Which of the following is true? Select one: O a. The population is 100 date trees selected from the farm O b. Systematic sampling is a convenient sampling method O c. The sampling size will be 20 O d. Systematic sampling is obtained by taking every pth element from the population
Suppose the manager agrees to pay each employee a$50bonus if they meet a certain goal. On a typical Saturday, the oil-change facility will perform 35 oil changes between 10 A.M. and 12 P.M. Treating this as a random sample, at what mean oil-change fime would there be a10%chance of being at or below? This will be the goal established by the manager. There would be a10%chance of being at or below minutes.
36% of canadians are single and 20 % are corona infected whereas 12 % are single and corona infected. Given that a selected individual is married, the probabilty that he/ she is corona infected 0.750 0.125 0.250 0.875
Suppose you rolled a fair six-sided die a few times and recorded the results. (You would have a collection of numbers 1-6.) Now, suppose you wanted to average these numbers. What value would you expect? If the die was rolled 6 times and the results were: 1, 4, 2, 2, 3, 2, then the average of this sample of rolls would be 2.333. This experiment could be peformed again: 6, 5, 2, 1, 1, 4. Now, the average of this sample is 3.167. Obviously, these small samples have a lot of variation in them; however, is there a way to calculate the expected average? If we were to construct a very large sample, rolling this die 1 million times, what would the expected value (mean) be? Luckily, the rules of probability allows us to do this calculation without actually having to roll the die 1 million times! Below, you will find a probability table where all of the possible outcomes from the die are listed. The first column contains the possible outcomes on the die, the second column contains the…
2. In a population it is estimated that 20% have a desired trait of interest for the researcher. The researcher wants to know how many people on average he has to draw from a population to get 2 people with the trait. Use rows 20-24 of the Random Number Table to carry out the simulation. Explain clearly how you set up the problem and report your findings. Answer:
I am confused when to use BinomPDF vs. BinomCDF; Find the probability that 17 or more of these 44 randomly-selected burials are babies. I know that from the probability is 13/51, I gathered this from the larger sample of data, however I do not know how to compute "or more"/"or fewer".
Suzette does an experiment where she collects date from 5 women snd obtains the scores: 4, 4, 5, 2, 5. She hypothesizes that the population mean for the population from which these scores are drawn is 3. She wants to test whether this hypothesis is true. What is the alternative hypothesis she is testing?
The president of Doerman Distributors, Inc., believes that 28% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers. What is the probability that the sample proportion will be between 0.16 and 0.40 (to 4 decimals)? What is the probability that the sample proportion will be between 0.21 and 0.35 (to 4 decimals)?
One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 35 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 35 minutes for the cable technician to arrive. The customer asks a simple random sample of 4 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 39.l minutes with a standard deviation of 2.6 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.10 level of significance. Step 3 of 3: Draw a conclusion and interpret the decision.
One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 45 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 45 minutes for the cable technician to arrive. The customer asks a simple random sample of 25 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 47.9 minutes with a standard deviation of 7.6 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.01 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho : μ = 45 Ha:μ 45
is described below. NOTE: If the method is experimental, indicate if it is a true experiment or quasi experiment. 1. I get 30 people and use random assignment to divide the people into two groups. One group reads an article about the statistics of injuries and deaths caused by people using smart phones while driving, the other group watches a short video about a person who killed someone while using their smart phone. Both groups are then monitored to see if either of these made a difference in how often these people use their smart phones use while behind the wheel. What method would that study be? 2. What method asks a series of questions that are all planned in advance?