12304The manufacturer of the ColorSmart-5000 television set claims that 95 percent of its sets last at least five years without needing asingle repair. In order to test this claim, a consumer group randomly selects 400 consumers who have owned a ColorSmart-5000television set for five years. Of these 400 consumers, 316 say that their ColorSmart-5000 television sets did not need repair, while 84say that their ColorSmart-5000 television sets did need at least one repair(a) Letting p be the proportion of ColorSmart-5000 television sets that last five years without a single repair, set up the null andalternative hypotheses that the consumer group should use to attempt to show that the manufacturer's claim is falseHO.P095 versus Ha p0.95(b) Use critical values and the previously given sample information to test the hypotheses you set up in part a by setting a equal to 10,05, 01, and 001. How much evidence is there that the manufacturer's claim is false?4HO at each value of oevidence

Answered: The manufacturer of the ColorSmart-5000…

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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80 percent of UNO students drive to campus. Which is more likely (a) Out of 10 randomly selected UNO students, exactly 5 drive to campus (b) Out of 20 randomly selected UNO students, exactly 10 drive to campus.
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An opinion poll contacts 1021 adults and asks them, which political party do you think has better ideas for leading the country in the twenty first century? In all, 723 of the 1021 day, the democrats. The sample in the setting is? (a) all 220 million adults in the U.S. (b) the 1022 people interviewed (c) the 723 people who chose the democrats.
250 adults are practicing every day before taking part in a high-stakes children's game. The game requires them carefully to remove a shape- either a star or an umbrella-from a sugar wafer. 30% of those who choose stars on a given day will switch to umbrellas the next day, and 20% of those who choose umbrellas on a given day will switch to stars the next day. (a) If 150 contestants practice with stars today, how many will practice with umbrellas tomorrow? (b) If the actual game is held a long time from now, what proportion of contestants do we expect will be practicing with stars each day close to then?
Es A census of all the 12,475 current students at the local community college showed that 56.5% want to transfer to a university, their average age is 21.7 years, and 60 of them are pursuing degrees in mathematics. In order to attract more students, the math department organized an "Opportunities in Mathematics" fair for current students of the college. A total of 267 students from those who attended responded to a poll. The poll showed that 83% of those who answered want to transfer to a university, the average poll respondent was 22.3 years old, and 77 them were interested in pursuing a degree in mathematics. (a) For the math fair poll, identify the population and the sample. Population: (Choose one) Sample: (Choose one) (b) Choose whether each number described below is a parameter or a statistic for the math fair poll. Number Parameter Statistic The 60 students pursuing a math degree among all the current students at the community college The 56.5% of all current students at the…
In a series of studies, Sebastian Deri and his colleagues (2017) asked multiple groups about the number of friend groups they had and how often they attended different social events. They then asked participants how they thought their own numbers compared to other people's: Did participants see themselves as less social, the same as, or more social than others? In the first study, the researchers reported that: "Three hundred four participants from Amazon's Mechanical Turk (150 women; Mage = 37.1; 78% White, 10% Black, and 6% Asian) completed a survey in exchange for modest payment" (p. 860). What do the researchers mean by "Amazon's Mechanical Turk" with respect to their sample of participants? O A. An archival data set that already exists and from which researchers can use data O B. An online tool that researchers can use to recruit people to participate in research in exchange for a small payment O C. An e-book sold by Amazon that includes contact information for possible…
As part of a study on how people of different ages use mobile technology, each person in a sample of 258 cell phone users age 20 to 39 was asked if they use their cell phones to stay connected while they are in bed. The same question was also asked of each person in a sample of 129 cell phone users age 40 to 49. In the 20 to 39 years age group, 168 people indicated that they do stay connected while they are in bed, whilst in the 40 to 49 years old age group, 61 people stay connected while in bed. Let: = Proportion of cell phone users age 20 to 39 who stay connected while they are in bed ??̂ 2 = Proportion of cell phone users age 40 to 49 who stay connected while they are in bed ??̂= Pooled proportion of cell phone users who stay connected while they are in bed

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