Based on a smartphone survey, assume that 45% of adults with smartphones use them in theaters. In a separate survey of 273 adults with smartphones, it is found that 119 use them in theaters. If the 45% rate is correct, find the probability of getting 119 or fewer smartphones owners who use them in theaters. Is the results of 119 significantly low?

Q: In a commissioned research, the inter-collegiate swim meets management found out that an estimated…

A: GivenThe percentage of swimmers competing use performance enhancing drugs = 3% The accuracy of the…

Q: Given that a random person just tested positive, determine the probability of having this illness.

A: Here use tree diagram

Q: Based on a smartphone survey, assume that 49% of adults with smartphones use them in theaters. In a…

A: A)

Q: In a dental study on children it was found that the probability of the child population having any…

A: P(C) = p = 2/3 P(Not C) = q = 1-p= 1/3

Q: Based on a smartphone survey, assume that 42% of adults with smartphones use them in theaters. In a…

A: Given, P=42% of people of people use smartphones in theatres. no. of people use smartphones in…

Q: It has been shown by claims that have been made that 20% of parcels arrive damaged when using an…

A:

Q: Based on a smartphone survey, assume that 45% of adults with smartphones use them in theaters. In a…

A: Given: It is given that 45% of adults with smartphones use them in theaters thus, Thus, the mean…

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A:

Q: Based on a poll , among adults who regret getting tattoos , 27 % say that they were too young when…

A: Let X denote the number of selected adults say that they were too young to get tattoos. Then X…

Q: Based on a smartphone​ survey, assume that 57​% of adults with smartphones use them in theaters. In…

A: given  p = 0.57 n=216 mean =np = 216*.057 =123.12 variance = npq = 216*0.57*0.43 =52.9416 standard…

Q: Based on a smartphone​ survey, assume that 60% of adults with smartphones use them in theaters. In a…

A: The population proportion is 0.60. In a separate survey of 226 adults with​ smartphones, it is found…

Q: Based on a poll , among adults who regret getting tattoos , 38 % say that they were too young when…

A: given data,p(got their tattoos)=0.38q=1-p=1-0-38=0.62n=10x=No.of adults have tattoos

Q: Based on a poll, among adults who regret getting tattoos, 20% say that they were too young when they…

A: It is given that n = 5 and p = 0.20.

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: X: the leading brand of powdered milk in the philippinesX~Binomial(n,p)where n=14…

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: 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: Based on a smartphone​ survey, assume that 48​% of adults with smartphones use them in theaters. In…

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: Based on a smartphone survey, assume that 56% of adults with smartphones use them in theaters. In a…

A: Given information- We have given a problem of binomial distribution. We have given that 56% of…

Q: Based on a​ poll, among adults who regret getting​ tattoos, ​17% say that they were too young when…

A:

Q: the 43​% rate is​ correct, find the probability of getting 93 or fewer smartphone owners who use…

A: Given Data : sample size,n= 261 probability of success,p= 0.43

Q: A news article reported that there is a 60% success rate for those trying to stop smoking through…

A:

Q: Based on a poll , among adults who regret getting tattoos , 25 % say that they were to0 young when…

A:

Q: A new brand of drug-free nasal strip claims to be 90% effective in relieving nasal congestion to…

A: From the given information the probability of success is 0.9

Q: Based on a smartphone​ survey, assume that 41​% of adults with smartphones use them in theaters. In…

A: See the handwritten solution

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

A: p=0.68  _________________________ P(x≥1) = ?

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Given Information No of headache sufferers (n) = 400 Proportion of Headache sufferers who get relief…

Q: Based on a smartphone​ survey, assume that   42​% of adults with smartphones use them in theaters.…

A:

Q: If a particular shipment of thousands of aspirin tablets actually has a 44​% rate of​ defects, what…

A: It is given that aspirin tablets have a 44% rate of defects. That is probability of getting a…

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

A:

Q: According to a National Public Radio poll, 46% of American school students pay no attention to sex…

A:

Q: What is the probability of hitting a target, if in the long run, 71 out of every 464 attempts…

A: Probability:The probability of an event A is obtained  by the formula:

Q: A study conducted in a US city shows that 15% live in poverty. Find the probability that among 9…

A: GivenUS city shows that 15% live in povertyp=0.15n=9x~Binomial(n=9,p=0.15)P(X=x)=(nx)×px×(1-p)n-x…

Q: According to data on the sale of Vehicles in Barbados, it was calculated that men purchase 75% of…

A: From the provided information, Men purchase 75% of vehicles in Babados (p) = 0.75 Sample size (n) =…

Q: Based on a smartphone survey, assume that 43% of adults with smartphones use them in theaters. In a…

A:

Q: A recent survey found that​ 70% of all adults over 50 wear sunglasses for driving. In a random…

A: Given that in a recent survey found that​ 70% of all adults over 50 wear sunglasses for driving.…

Q: The probability, to the nearest hundredth, that a randomly selected household subscribes to cable…

A: Given, A survey of households, who subscribe to Netflix and the percentage who subscribe to cable…

Q: Based on a poll , among adults who regret getting tattoos, 70% say that they were too young when…

A:

Q: Based on a smartphone​ survey, assume that 43​% of adults with smartphones use them in theaters. In…

A: Given : p = 0.43 n = 258 x = 110 p^ = 110258 p^ = 0.4264 a. PX≤110 = Pp≤0.4264 PX≤110 =…

Q: Based on a poll , among adults who regret getting tattoos , 27 % say that they were too young when…

A: Let X be the number of the adults say that they were too young to get tattoos which follows binomial…

Q: ased on a smartphone survey, assume that 45% of adults with smartphones use them in theaters. In a…

A: Given, n = 215 p = 0.45

Q: Based on a smartphone survey, assume that 47 percent of adults with smartphones use them in…

A:

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Here, the given values are: Calculate the mean

Q: Based on a survey, when 1009 consumers were asked if they are comfortable with drones delivering…

A: Let x be the number of customers comfortable with the drones is represented as 0 + which follows…

Q: Based on a smartphone survey, assume that 43% of adults with smartphones use them in theaters. In a…

A: We have given that  Sample size n= 243  Favorable cases x=104 Success of probability p= 0.43

Q: Based on a study by Dr. P. Sorita at Indiana University, approximately 12% of people have green…

A: It is given that n =0.12 and n = 650.

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Given,n=10p=0.23Let X=no.of adults to get tattoosX~Binomial(n=10  ,  p=0.23)P(X=x)=10x…

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.