✓ 1✓2Part 1 of 4Part 2 of 4= 3Question Attempt: 1 of 1Continue47°FCloudy= 4= 5= 6(a) What is the probability that five or more of them used their phones for guidance on purchasing decisions?The probability that five or more of them used their phones for guidance on purchasing decisions isG= 78What should I buy? A study conducted by a research group in a recent year reported that 56% of cell phone owners used their phones inside a store forguidance on purchasing decisions. A sample of 13 cell phone owners is studied. Round the answers to at least four decimal places.Q Search(b) What is the probability that fewer than nine of them used their phones for guidance on purchasing decisions?910DELL11X12513Save For Later© 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use |BabithED198Molo6Submit AssignmentPrivacy Center | Accessibility12:423/26/2 Part 3 of 4(c) What is the probability that exactly seven of them used their phones for guidance on purchasing decisions?The probability that exactly seven of them used their phones for guidance on purchasing decisions isPart 4 of 4(d) Would it be unusual if more than 10 of them used their phones for guidance on purchasing decisions?It (Choose one) ▼ be unusual if more than 10 of them used their phones for guidance on purchasing decisions since theprobability isContinueXSave For Later

As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Answered: Part 1 of 4 = 3 Part 2 of 4 4 5…

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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a Pew research center surveyed ask adults in the United States which technology would be very hard to give up the following responses were obtained internet 70% smartphone 60% email 30% and landline 25%, If 2,000 owners of smartphones were surveyed what is the expected number that will report that it would be very hard to give up?
It is known that the use of banned drugs can contribute to mental illness. The minister of health wants to put a cost to this disaster and request that you take a study. In Barbados 40% of mentally ill blame their illness on drugs. Without previous knowledge in Jamaica we assume that this is the same proportion here. You selected a random sample of 12Bellevue patients to review. What is the probability that 6 patients used the drugs that caused their illness.
7. According to a college survey, 22% of all students work full time. In a survey of 14 students, what is the probability that no more than 2 of them work full time?
34. What should I buy? A study conducted by the Pew Research Center reported that 58% of cell phone owners used their phones inside a store for guidance on purchasing decisions. A sample of 15 cell phone owners is studied. b. What is the probability that fewer than 10 of them used their phones for guidance on purchasing decisions?
The 2015 National Vital Statistics Report provides information on how the nearly four million live births that occurred in 2014 broke down by birth order. Choose at random a baby born in the United States in 2014. Baby's birth order Probability mean = 1 2 0.391 0.319 The few babies who were 9th or more in birth order are included in the "8" birth order group. In 2014, 39.1% of the nearly 4 million live births in the United States were to first-time mothers. 3 5 6 7 4 0.168 0.072 0.028 0.012 0.005 standard deviation = What are the properties of the sampling distribution of the proportion of births to first-time mothers in random samples of 500 births from 2014? (Enter your answer for the mean rounded to three decimal place and your answer for the standard deviation rounded to four decimal places.) 8 0.005
Based on historical data, your manager believes that 31% of the company's orders come from first-time customers. A random sample of 119 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.24 and 0.37?
Do cat owners sleep better than those without cats? To help answer this question, a cat enthusiast obtained a random sample of 500 Canadians, each of whom answered two questions: 1. do you have a cat? (yes or no), 2. How well do you sleep? (good, neutral, bad). The dataset “CatSleep.xlsx” contains her findings. Find the probability that a randomly selected Canadian is a bad sleeper and a cat owner. Find the probability that a randomly selected Canadian is a neutral sleeper or a cat owner. Find the probability that a randomly selected non-cat owner is a bad sleeper. That is, find the probability that a randomly selected Canadian is a bad sleeper, given they are not a cat owner Can you handwrite the solution?
Based on observation 85% of the population of adult males wash their hands in a public restroom. In a survey of 523 adult males, 518 reported they washed their hands when using a public restroom. Find the probability that among 523 randomly selected adult males 518 or more wash their hands in a public. restroom. Does it appear that all the people who claimed they washed their hands were telling the truth?
According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze. Complete parts (a) through (c). Question content area bottom Part 1 (a) What is the probability that among 18 randomly observed individuals, exactly 4 do not cover their mouth when sneezing?
In a Pew Research Center survey of Internet users, 3732 respondents say that they use social networking sites and 1380 respondents say that they do not use social networking sites. What is the probability that a randomly selected person uses a social networking site? Does that result suggest that it is likely (with a probability of 0.5 or greater) for someone to use social networking sites?

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