Based on a smartphone​ survey, assume that 57​% of adults with smartphones use them in theaters. In a separate survey of 216 adults with​ smartphones, it is found that 121 use them in theaters. a. If the 57​% rate is​ correct, find the probability of getting 121 or fewer smartphone owners who use them in theaters. b. Is the result of 121 significantly​ low?

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A: Let x follows binomial distribution with parameters n = 2 and p = 0.54   The pdf of binomial…

Q: In a certain factory, the probability of workers suffering from an occupational disease is 20%.…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: The probability that an adult possesses a credit card is .35. A researcher selects two adults at…

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Q: 2016, 48.3% of college students voted.  What is the probability of getting 40 or fewer students who…

A: Number of trail n=100Probability of success p=0.483

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A:

Q: In the history of film and television, accidents have occurred, such as deaths of actors or crews…

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Q: Twenty-four percent of couples who plan to marry this year are planning destination weddings. In a…

A: I solved exactly first 3 subpart because of bartleby policy....   Let random variable X: number of…

Q: thirty four percent of us adults have very little confidence in newspapers. You randomly select 8 US…

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Q: The probability that an individual is​ left-handed is 0.130. In a class of 25 ​students, what is…

A:

Q: The probability that an adult possesses a credit card is .35. A researcher selects three adults at…

A: Givenp=0.35n=3x~Binomial(n=3,p=0.35)P(X=x)=Cxnpx(1-p)n-x    ; x=0,1....n

Q: A bag has 10 pumpkin scented hand sanitizers, 6 cinnamon scented hand sanitizers, and 7 apple pie…

A: A bag has 10 pumpkin scented hand sanitizers, 6 cinnamon scented hand sanitizers, and 7 apple pie…

Q: In 2019 about 45% of people watch over 3 hours of tv a week. Suppose 8 people were selected at…

A: It is given that n = 8 and p =0.45.

Q: b. Draw pie chart shows the favorite social media application used for communication and give your…

A: The given table represents that the 15 student’s details like gender, hours spend in social media…

Q: A real estate agent has 18 properties that she shows. She feels that there is a 40% chance of…

A: We have to find given probability.

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Q: According to Gallup poll, 36% of all college students use an Apple i phone only.  If a sample of 200…

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Q: You want to determine the probability that when five consumers are randomly selected, exactly two of…

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Q: A magazine reported that 6 percent of all drivers talk on their cell phone while driv If 300 drivers…

A: Given data, p=6% =0.06 n=300 P(0.04<X<0.07)=?

Q: 68% of adults would still consider a car brand despite product/safety recalls. You randomly select…

A:

Q: A survey of Indiana, PA residents finds that 68% like Bob's Sub, 83% like Culpepper's, and 56% like…

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Q: The newspaper reports that among individuals in the 18 to 22 age, 25% drink coffee. If 400 people of…

A: Given,n=400p=0.25q=1-0.25=0.75np=400×0.25=100≥5nq=400×0.75=300≥5we can use normal…

Q: In 2017, 39.2% of the total email messages is spam. If 59 email messages from 2017 are randomly…

A: From the given information ,39.2% of the total email messages is spam .ie, P(success) = p = 39.2% =…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 12​% say that they were too young when…

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Q: Current estimates suggest that 70% of the home-based computers in a foreign country have access to…

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Q: Suppose that 20% of the cars on the road of Tashkent city are equipped with an anti-radar device.…

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Q: A real estate agent has 16 properties that she shows. She feels that there is a 50% chance of…

A: Given,n=16p=50%=0.5,m 1-p=1-0.5=0.5Compule the probability of selling less than…

Q: The probability that an individual is​ left-handed is 0.190. In a class of 27 ​students, what is…

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Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…

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Q: In poker hand consisting of 5 cards, find the probability of holding 2 aces and 3 jack

A: Given Number of aces=4 Number of jacks=4 Total number of cards=52

Q: The Club reports that among individuals in the 28 to 32 age, 35% are football fans. If 200 people of…

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Q: It has been reported that 48% of people text and drive. A random sample of 60 drivers is drawn. Find…

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Q: A study indicates that 80% of households have have a dog. You randomly sample 7 households. Find the…

A:

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

Q: A real estate agent has 1717 properties that she shows. She feels that there is a 60%60% chance of…

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Q: 8. What is the value of seasonal index for month 1, year 3?

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: In a sample of 445 cars, stopped at a road block, only 69 of the drivers had their seat belts…

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A:

Q: The drop out probability for students in computer science programs is 0.35. If 210 students enrolled…

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Q: The newspaper publishes an article that 62% of teenagers prefer Marvel to DC comics. You decide to…

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Q: The number of death due to diabetes and kidney disease for an American during 2015 is respectively…

A: The number of death due to diabetes and kidney disease for an American during 2015 is respectively…

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.