A survey conducted at a shopping mall asked 100 individuals including 48 women about whether they were happy about the early closing of shops to control spread of corona. 87 of them responded in negative. Only 4 of the women said that they were happy with the early closure. Construct a 2-way contingency for gender and survey response and answer the following questions a. If a randomly selected person was a male, what is the probability that he would have responded “yes” b. What is the probability that a randomly selected female would have responded no c. What is the probability that a randomly picked person who said no is a male

Q: A random sample of 100 blue-collar employees at a large corporation are surveyed to assess their…

A: Given: Sample size (n) = 100 Probability of success (p) = 0.60 Let X ~ Bin (100, 0.60)

Q: Please answer d and e.

A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three…

Q: The manager of Vangaurd Assurance has recently examined the automobile insurance customers and found…

A: It can be observed that there are two possible outcomes. Now for such probability questions, normal…

Q: A pharmaceutical company claims that 20% of those taking its new allergy medication will experience…

A: Of the people who take the new allergy medication of the company, p = 20% will experience…

Q: The units without evidence of gas leaks or electrical failure showed other types of failure. If this…

A: The data is given by   Gas Yes Gas No Total Electrical failure 55 17 72 No 32 3 35 Total 87…

Q: a. If one person is selected at random from this study, what is the probability they purchased a…

A: This is a very useful medium of presenting a data . Many calculations can be carried on easily .

Q: In one study of calls to 911 in Los Angeles, it was found that 85% of the calls were not…

A: Solution: From the given information, the proportion of the calls were not emergencies is p=0.85 and…

Q: A random sample of college students were asked to respond to a survey about how they spend their…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: Based on a​ poll, ​63% of Internet users are more careful about personal information when using a…

A: Let us denote X=the number of internet users who are careful about personal information when using a…

Q: It has been found that 1 out of every 10 people who visit a local store purchasecigarettes. If we…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: A recent study of cardiovascular risk factors reported that 30% of adults met criteria for…

A:

Q: Based on a​ poll, 62​%of Internet users are more careful about personal information when using a…

A: Since 62% of the internet user is more careful about personal information when using a public ​Wi-Fi…

Q: According to a poll of​ adults, about 4848​% work during their summer vacation. Assume that the true…

A: From the given information, it is clear that sample size, n = 600.The probability of success, p hat…

Q: A recent survey of post-secondary education students in Canada revealed that 72% are confident in…

A: Given,n=32p=0.72q=1-0.72=0.28A random variable X~Binomial(n=32 , p=0.72)P(X=x)=32x0.72x0.2832-x    ;…

Q: After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired…

A:

Q: Based on a​ poll, 69​% of Internet users are more careful about personal information when using a…

A: Given Data Probability of success,p = 0.69 Probability of failure,q=(1- 0.69 )= 0.31…

Q: An insurance company classifies the airplane it insures into class L (low risk) and class H (high…

A: a) It is given that, the proportion of airplanes belongs to class H is 30% or 0.3.

Q: A medical study testing a new drug for treating cooties gave the drug to one group and a placebo to…

A:

Q: Based on a​ poll, 61​% of Internet users are more careful about personal information when using a…

A:

Q: The probability that an UofM student is from the Greater Toronto Area is only .25. What is the…

A:

Q: Students at the Akademia Podlaka conducted an experiment to determine whether the Belgium-minted…

A:

Q: impact of caffeine consumption. Smoking alcohol consumption and physical activity on cardiovascular…

A: Given that,  40% of participants consume caffeine and smoke. 8 participants are evaluated. Here,…

Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a…

A: Given p = 0.67 and n =4 Let X be the number of Internet users who are more careful about personal…

Q: Based on a​ poll, 68​% of Internet users are more careful about personal information when using a…

A:

Q: 4 percent of the personal computers made by the Apple Company are returned by customers for service.…

A: Given that,  Probability,p= 4% = 0.04 And sample size, n= 64 We know that, According to the given…

Q: It has been estimated that 43% of business graduates believe that a course in business ethics is…

A: Given : sample size n = 80 p = 0.43

Q: In a clinical trial of a drug tested to verify its use in helping people to stop smoking, 793 people…

A: a) We can use Binomial distribution for the number of people who reported feeling sick in this…

Q: The teachers at a local high school were surveyed. Two of the variables recorded for the 150…

A: P(less than 5 Y teaching experience) = P(new teacher)

Q: If a person is selected at random from this group, what is the probability that he/she d) Is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a…

A: Consider a random variable X which represent the number internet users who are more careful about…

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 3030 times,…

A: Given, n = 30 x = 27 p=xn   = 2730   = 0.9 X ~ B(n, p) P(X=x) = Cxn px(1-p)n-x;     x=0,1,2....n…

Q: 45 employees were randomly chosen from different companies and asked whether they were happy with…

A: T = Total  n(T) = 45

Q: In a recent year, about 37% of all infants born in a country were conceived through in-vitro…

A: It is given that , In a recent year. about 37% of all infants born in a country were conceived…

Q: According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed…

A: Given that 202 of a sample of 5,990 middle-aged men had developed diabetes.

Q: What is the probability that at least one copier is working when school opens? What is the expected…

A:

Q: A recent survey showed that 18% of MIS students have experienced some form of anxiety during the…

A: It is an important part of statistics. It is widely used.

Q: A random sample of 270 homes was taken from a large population of older homes to estimate the…

A: Given: A random sample of 270 homes was taken from a large population of older homes to estimate the…

Q: Of the last 60 people who went to the cash register at a department store, 13 had blond hair, 19 had…

A: Solution: From the given information, number of people had blond hair is 13, number of people had…

Q: According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed…

A: Let S be the sample space and E be the event in S.  The probability of the event E is denoted by PE…

Q: An engineering school reports that 51% of its students were male (M), 33% of Type number- its…

A: P(M)=0.51 P(A)= 0.33 P(M and A)= 0.24 The general addition rule of probability is, P(M or A) = P(M)…

Q: The Substance Abuse and Mental Health ServicesAdministration reports that in 2011, 20,783 people…

A:

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: It is given that in a survey taken by Adecco of 1,047 employees found that 28% of them would lay off…

Q: According to a poll of​ adults, about 40​% work during their summer vacation. Assume that the true…

A: From the given information, Sample size (n) = 500 Probability of success (p) or adult work during…

Q: According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed…

A: Given that, According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had…

Q: Catherine Chao, Director of Marketing Research, needs a sample of Kansas City households to…

A:

Q: MHS has three copiers, and because teachers make a lot of copies, often copiers need to be repaired.…

A: As per the guidelines, I can solve only the first 3 subparts. Kindly repost the last part. Thatnks!

Q: The teachers at a local high school were surveyed. Two of the variables recorded for the 150…

A: 4) The number of teachers who has less than 5 years of teaching experience and who owns their own…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.