Find the expected counts in each category using the given sample size and null hypothesis.Ho: All three categories A, B, C are equally likely; n = 1500Enter the exact answers.CategoryExpectedcountAM.BMC

Answered: Find the expected counts in each…

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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There are four questions about this problem in the test shown in random order. Out of 1000 customers in the test data, there are only 100 buyers. A classification model applied to these customers, predicts 200 buyers. If buying is regarded as positive, there are 50 true positives. What is crude accuracy? O a. 10% O b. 25% 15% O d. 20%
Write a sample space for the given experiment: A dice is rolled, and a coin is tossed.
With a valid detailed explanation give the correct answer out of the 4 choices.
Find the expected counts in each category using the given sample size and null hypothesis. Ho: P₁ = 0.6, p₂ = 0.1,p3 = 0.15, P4 = 0.15; n = 500 Enter the exact answers. Category Expected count 1 2 3
K An internet company conducts a global consumer survey to help multinational companies understand different consumer attitudes throughout the world. Within 30 countries, the researchers interview 1000 people aged 13-65. Their samples are designed so that they get 500 males and 500 females in each country. Complete parts a and b below. a) Are they using a simple random sample? Explain. OA. No. It would be nearly impossible to get exactly 500 males and 500 females from every country by random chance. OB. Yes. It is likely that 500 males and 500 females from every country were interviewed by random chance. OC. No. They are using a census rather than a simple random sample. O D. Yes. The population is split into representative clusters; therefore, it is a simple random sample. b) What kind of design do you think they are using? OA. A stratified sample, stratified by whether the respondent is male or female. OB. A multistage sample, which uses a variety of sampling methods together. OC.…
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An observational study is described. Identify the specified element.At St. Luke's hospital in 1998, 674 women were diagnosed with breast cancer. Five years later, 88% of the Caucasian women and 83% of the African American women were still alive. Determine the nature and scope of the conclusion the study can reach. Choose the best answer below: A. Since there is no random assignment, there is no way to know that being Caucasian causes women with breast cancer an increased chance of surviving five years; there may have been confounding variables. B. For women with breast cancer, being Caucasian causes an increased chance of surviving five years. C. Since there is no random assignment, there is no way to know that being Caucasian causes women with breast cancer an increased chance of surviving five years; there may have been lurking variables. D. For Caucasian and African American women with breast cancer, attending St. Luke's hospital causes an increased chance of surviving five…
Let the sample space be S={1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Suppose the outcomes are equally likely. Compute the probability of the event E={2, 3, 6}. Question content area bottom Part 1 P(E)=enter your response here (Type an integer or a decimal. Do not round.)
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A survey asks 1100 workers, "Has the economy forced you to reduce the amount of vacation you plan to take this year?" Forty-six percent of those surveyed say they are reducing the amount of vacation. Ten workers participating in the survey are randomly selected. The random variable represents the number of workers who are reducing the amount of vacation. Decide whether the experiment is a binomial experiment. If it is, identify a success, specify the values of n, p, and q, and list the possible values of the random variable x. Is the experiment a binomial experiment? No Yes What is a success in this experiment? Selecting a worker who is not reducing the amount of vacation Selecting a worker who is reducing the amount of vacation This is not a binomial experiment. Specify the value of n. Select the correct choice below and fill in any answer boxes in your choice. O A. n= B. This is not a binomial experiment. Specify the value of p. Select the correct choice below and fill in any answer…

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Find the expected counts in each category using the given sample size and null hypothesis. Ho: All three categories A, B, C are equally likely; n = 1500 Enter the exact answers. Category Expected A B C