Some states now allow online gambling. As a marketing manager for a casino, you need to determine the percentage of adults in those states who gamble online. How many adults must you survey in order to be 99% confident that your estimate is in error by no more thanthree percentage points? Complete parts (a) and (b) below.a. Assume that nothing is known about the percentage of adults who gamble online.n=(Round up to the nearest integer.)b. Assume that 19% of all adults gamble online.n=(Round up to the nearest integer.)

Answered: Image /qna-images/answer/bee0531e-e22f-4a9b-9e6b-9eda377dc49e.jpg

Answered: Some states now allow online gambling.…

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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A polling company reported that 53% of 2302 surveyed adults said that they play football. Complete parts (a) through (d) below. a. What is the exact value that is 53% of 2302? The exact value is (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that they play football? Why or why not? OA. Yes, the result from part (a) could be the actual number of adults who said that they play football because the polling numbers are accurate. OB. No, the result from part (a) could not be the actual number of adults who said that they play football because that is a very rare activity. OC. Yes, the result from part (a) could be the actual number of adults who said that they play football because the results are statistically. significant. O D. No, the result from part (a) could not be the actual number of adults who said that they play football because a count of people must result in a whole number. c. What could be the actual number of adults…
A programmer plans to develop a new software system. In planning for the operating system that he will use, hee needs to estimate the percentage of computers that use a new operating system. How many computers must be surveryed in order to be 90% confident that his estimate is in error by no more than one percentage point. Complete part (a) through (c) below. a. n= b Assummer that a recent survey suggests that about 86% of computers use a new operating system. c. Does the additional survey information from part (b) have much of an effect on the sample size that is required?
A researcher wants to determine the percentage given below. Describe how the researcher should apply the five basic steps in a statistical study. (Assume that all the people in the poll answered truthfully.) the percentage of volunteers that volunteer over 10 hours per week Determine how to apply the first basic step in a statistical study in this situation. Choose the correct answer below. A. The population is all volunteers that volunteer over 10 hours per week The researcher wants to estimate the number in this population that volunteer over 10 hours per week OB. The population is all volunteers. The researcher wants to estimate the percentage in this population that volunteer over 10 hours per week. C. The population is all volunteers that do not volunteer over 10 hours per week. The researcher wants to estimate the number in this population that do not volunteer over 10 hours per week. D. The population is all volunteers. The researcher wants to estimate the percentage in this…
I only need help with C and D. Thank you!
A polling company reported that 19% of 1018 surveyed adults said that secondhand smoke is "quite annoying." Complete parts (a) through (d) below. a. What is the exact value that is 19% of 1018? The exact value is. (Type an integer or a decimal.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing known about the percentage of passengers who prefer aisle seats. n= 335 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
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Statistics Question
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 99% confident that the sample percentage is within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n = 820 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 39% of air passengers prefer an aisle seat. n=0 (Round up to the nearest integer.) C
d. Let’s define a “binge watcher” as someone in the upper 5% of the distribution of minutes watching TV. How many minutes does a “binge watcher” spend per day watching TV? (Round your intermediate calculations and final answer to 1 decimal place.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 2.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n=1083 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 33% of air passengers prefer an aisle seat. n=? (Round up to the nearest integer.)
A. What is the total with the disease? B. What is the number with the disease that test positive? C. What is the number without the disease that test positive. D. Determine P(Have the Disease | Tested Positive). Please help and answer all parts using the chart attached

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