Smartphones Based on an LG smartphone survey, assume that 51% of adults with smartphones use them in theaters. In a separate survey of 250 adults with smartphones, it is found that 109 use them in theaters. a. If the 51% rate is correct, find the probability of getting 109 or fewer smartphone owners who use them in theaters. b. Is the result of 109 significantly low?

Q: A study indicates that 73% of cars have have satellite radio. You randomly sample 8 cars. Find the…

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

Q: Find the odds in favor of an event and odds against event S.  For Samsung ships 23.5 percent of the…

A: A: Samsung shipsP(A)=23.5%=0.235P(Ac)=1-P(A)=1-0.235=0.765

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

A: Given information- We have given the probability that an adult possesses a credit card p = 0.35 The…

Q: A mail-order company has a 9% success rate. If it mails advertisements to 500 people, find the…

A:

Q: A disease has a prevalence of 11%. A diagnosis has 85% probability of correctly identifying the…

A: Let D=The Person has the disease. Dc=The person doesn't have the disease. P=The person is tested…

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

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

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: Marketers find that 87% of US teenagers use the Internet. Consider a random sample over 282 US…

A:

Q: Canadians is chosen, find the probability that fewer than 3 respondents will support the seal hunt.

A:

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given thatThe proportion of eligible voters in the next election who will vote for the incumbent is…

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: One-and-One Free Throws. A basketball player is fouled in a one-and-one situation, meaning she is…

A: Given data: The given probability that the player makes the first free throw is P=0.7. a) The…

Q: If the probability of choosing a red chip from a bucket is 0.4, What is the probability of not…

A: We have the probability of choosing a red chip from a bucket is 0.4

Q: Pls help ASAP.

A: Given that a professional archer claims to hit his target 4 out of 5 times. Then the probability…

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

A: 1. Consider that p is population proportion of all college students who use an Apple i phone.

Q: Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced…

A: Total Cards in deck = 52 Number of club in the deck = 13 Number of spade in the deck= 13 Probability…

Q: Based on a smartphone​ survey, assume that 51​% of adults with smartphones use them in theaters. In…

A:

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

A: The question is about binomial prob. distribution Given : No. of randomly selected customers ( n ) =…

Q: A student has a 30% chance of getting a particular professor for a class. What are the odds of…

A: From the provided information, There is 30% chance a student getting a particular professor for a…

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: 45% of Americans don’t know the sun is a star. The data is normally distributed.Find the probability…

A: Given data, p=45%=0.45 n=120 P(p>0.42)=?

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: 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: A parking enforcement officer has a quota of 5 citations to issue by the end of the shift. Assume…

A: Number of citation to be issued at end is 5. The probability of given car has a violation is…

Q: When making random guesses on an 6 question quiz the probability of guessing correctly on any one…

A: Let p be the probability of guess the correct answer p=0.25 n=6  Let X be the number of correct…

Q: Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a…

A: Given proportion of adults using smartphones in theatres = p = 0.40.the total adults with smart…

Q: he probability for a student to pass an test is 0.75. The student will take 7 test in the future.…

A:

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

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 smartphone​ survey, assume that   42​% of adults with smartphones use them in theaters.…

A:

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

A:

Q: According to a report in Parade magazine, a nationwide survey conducted by the University of…

A: We have given that Probability (p)  = 0.70  Number of samples(n) = 12 Here we will use binomial…

Q: The driving time between Toronto and North Bay is found to range evenly between 195 and 240 mins. a.…

A: The given distribution is uniform distribution. X~U(a=195,b=240) Then, a. P(driving time≤210)=?The…

Q: 200 volunteers at a local kennel were surveyed. It was found that 132 women and 68 men volunteered.…

A: given data  132 women 68 men _______________ 200 total surveyed   of the 132 women 91 liked dogs and…

Q: A sample survey interviews an SRS of 267 college women. Suppose that 70% of college women have been…

A: The distribution of data follows normality can be checked using the two conditions :  np≥5 n1-p≥5…

Q: A survey was done/household in kern County. 85.4% have a computer. Supposed you hired 100 kern…

A:

Q: 80% of teenagers have access to some social media. If you do a random survey of 400 teenagers, what…

A:

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Solution: From the given information, n = 410 and p = 0.527.

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

A: Let X be the drop out students in computer science program. X has a binomial distribution with…

Q: In one Introductory Statistics class, the probability that a student will pass the first test is…

A: events: A: pass first test  B: pass second test   P(A) = 0.55         P(A') = 1 - 0.55 = 0.45 P(B|A)…

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

A: a. Denote n as the size of the sample taken from the relevant population, out of which, x is the…

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.