**Probability and Independence of Events**A student stays at home. Let event N = the student watches Netflix. Let event Y = the student watches the very educational YouTube videos made by her/his instructor.Suppose P(N) = 0.1, P(Y) = 0.8, and P(N and Y) = 0.08.**Are N and Y independent?**- Yes, they are independent.- No, they are not independent.- It can't be decided with given info.- No answer text provided.

Answered: A student stays at home. Let event N=…

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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Tip at least 20% Tip less than 20% Works or worked in service industry 22 5 Never worked in service industry 36 8 Find P(individual has worked a service industry job) (2) Find P(individual either has never worked in the service industry or tips less than 20%) (4) Find P(individual has never worked in the service industry and tips less than 20%) (4) Find P(Tipping at least 20% | Service industry worker) (4) Find P(Two people both tip at least 20%)
Suppose that the insurance companies randomly surveyed 400 drivers and found that 320 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. Use this scenario for the next 4 questions. What is the meaning of p ^ in the context of this scenario? Group of answer choices the proportion of drivers who claim they always buckle up in the POPULATION Neither of these the proportion of drivers who claim they always buckle up in the SAMPLE What is the value of p ^ in the context of this scenario? f you wanted to estimate the true percentage of drivers who claim they always buckle up to within 1% error with 95% confidence, how many drivers would you need to survey? You may use the pilot study as a preliminary estimate of p ^.
Q1) Below find the records of 12 randomly selected used pickup trucks (none used commercially) and 11 randomly selected used passenger cars, the time (in years) that they were kept by the original owner before being sold: Used pickup trucks | 3 | 2.5 2.9 5 4.2 3.1 3.3 4 5.3 3.8 4.5 Used passenger cars | 2.2 3 2.8 4.3 4 3.3 2.9 2.1 2 3.1 3 It is known that the standard deviation of used pickup trucks is 2 years and of used passenger cars is 1 year. (a) Investigate, at the 5% significant level, whether the mean time (in years) that used pickup trucks were kept by the original owner before sold is larger than used passenger cars. (b) What assumption is needed to perform the test in (a). (c) Construct the 96% confidence interval for the mean difference of time (in years) were kept by the original owner before sold between used passenger cars and used pickup trucks. Use this confidence interval to tell whether there is difference in the mean time (in years) between these 2 tynes of…
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P Do Homework - HW 9.2 - Google Chrome A mathxl.com/Student/PlayerHomework.aspx?homeworkld%=611562314&questionld-18&flushed=false&cld=6725222¢erwin=yes STA 2023 leidy correa pabon &| 12/03/21 11:42 AM Question 1, 9.2.12-T E Homework: HW 9,2 HW Score: 9.38%, 0.75 of 8 points O Points: 0.75 of 1 Part 5 of 6 Save Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) d(b) below. E Click the icon to view the data table of IQ scores. a. Use a 0.05 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and…
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K Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. e this 4 Friday the 6th: Friday the 13th: 7 Z View an example What are the hypotheses for this test? Let u be the Hoi Hy zo Họ: Hy đọ 2 2 W S x H 10 14 command 2 3 mean of the differences Find the value of the test statistic. t=2.771 (Round to three decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill the answer box within your choice. (Round to three decimal places as needed.) OA. The critical values are t= 1. OB. The critical value is t= 6 12 Get more help - 80 E D с 35 4 11 13 R F 11 10 % 5 V 4 in the numbers of hospital admissions resulting…
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ation tamath.com/app/student/2865356/22776217/197eaf2c743c7391f2865db9440238e0 mus Dashboard DeltaMath actice StatMuse NFL Desmos | Graphing... Question Show Examples The following table represents the highest educational attainment of all adult residents in-a certain town. If a resident who has only completed high school is chosen at random, what is the probability that they are aged 40 or over? Round your answer to the nearest thousandth. Age 20-29 Age 30-39 Age 40-49 Age 50 & over Total Way Table from a Table from Table High school only 1443 1211 423 1390 4467 Some college 1307 1575 1237 2719 6838 Bachelor's degree 704 1404 448 2260 4816 Master's degree 1178 433 804 367 2782 Total 4632 4623 2912 6736 18903 Description: Answer Attempt 1 out of 2 Log Out Submit Answer
Teachers want to know which night each week their students are doing most of their homework. Most teachers think that students do homework equally throughout the week. Suppose a random sample of students were collected which shows that the Number of students doing their homework on SUN where 16 Number of students doing their homework on MON where 18 Number of students doing their homework on TUE where 12 Number of students doing their homework on WED where 18 Number of students doing their homework on THR where 8 Number of students doing their homework on FRI where 4 Number of students doing their homework on SAT where 3 What is the Test Statistics to test the Hull Hypothesis that students were doing their homework with equal frequencies (that is, they fit a uniform distribution) against the alternative Hypothesis that students prefer doing their homework on a particular day (that is, they do not fit a uniform distribution)?

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