a certain​ survey, 519 people chose to respond to this​ question: "Should passwords be replaced with biometric security​ (fingerprints, etc)?" Among the​ respondents, 54​% said​ "yes." We want to test the claim that more than half of the population believes that passwords should be replaced with biometric security. Complete parts​ (a) through​ (d) below. a. Are any of the three requirements​ violated? Can a test about a population proportion using the normal approximation method be​ used? A. All of the conditions for testing a claim about a population proportion using the normal approximation method are​ satisfied, so the method can be used. B. The sample observations are not a random​ sample, so a test about a population proportion using the normal approximating method cannot be used. C. The conditions np≥5 and nq≥5 are not​ satisfied, so a test about a population proportion using the normal approximation method cannot be used. D. One of the conditions for a binomial distribution are not​ satisfied, so a test about a population proportion using the normal approximating method cannot be used.

Q: In a certain school district, it was observed that 34% of the students in the element schools were…

A:

Q: In a certain school district, it was observed that 35% of the students in the element schools were…

A: It is given that, in a certain school district 35% if the students in the element schools were…

Q: A research group conducted an extensive survey of 2962 wage and salaried workers on issues ranging…

A: The provided information is:

Q: In a random survey of 1,000 households in the United States, it is found that 29 percent of the…

A:

Q: In a certain school district, it was observed that 30% of the students in the element schools were…

A: Let p be the population proportion of students in the element schools were classified as only…

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A: From the provided information, Sample size (n) = 426 Out of which 126 are only children. Level of…

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A:

Q: In a certain school district, it was observed that 29% of the students in the element schools were…

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Q: In a random sample of 251 potential voters registered in the state of Utah, 92 indicated that they…

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Q: n New York City, a study was conducted to evaluate whether any information that is available at the…

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Q: What is the sample proportion such that 95% of all others is symmetric around 36%?

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Q: Use these results from a USA Today survey in which 510 people choseto respond to this question that…

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Q: A builder claims that bidets are installed in 70% of all homes being constructed today in suburban…

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Q: A study sponsored by the American Savings Education Councilt included data from a survey of 1752…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

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A: Given that, Sample size n=428 Sample proportion of students who are only children p^=124428=0.2897

Q: n February 2008, an organization surveyed 1040 adults age 18 and older and found that 539 believe…

A: State the hypotheses.

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Q: 1. A Pew Poll taken in 2010 surveyed 830 randomly selected people ages 18 – 29, and found that 166…

A:

Q: According to a 2015 article, 37% of Americans aged 25 years or older have been arrested. An Orange…

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Q: In a certain school district, it was observed that 27% of the students in the element schools were…

A:

Q: In a certain school district, it was observed that 25% of the students in the element schools were…

A: It is given that 25% of the students in the element schools were classified as only children. Thus,…

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A:

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Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: Given: Margin of Error ME= 0.06 Confidence level c= 0.90

Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: Given: Confidence level = 0.95, margin of error = E = 0.08.

Q: Question 20

A: From the provided information, The hypotheses can be constructed as: Null hypothesis: H0: p = 0.38…

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A: Estimation is an important concept in statistics.

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A:

Q: In a certain school district, it was observed that 32% of the students in the element schools were…

A: Given that, p is 0.32, sample size n is 408 and x is 157. Thus, the hypothesized population…

Q: In April of 2019, HB 437 was approved in the state house of representatives which would require…

A:

Q: A historian examining British colonial records for the Gold Coast in Africa suspects that the death…

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Q: What is the name of this hypothesis test? A state employee wishes to see if there is a significant…

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Q: In a certain school district, it was observed that 35% of the students in the element schools were…

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Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: From the given information, Margin error (E) = 0.03 Assume sample proportion = 0.5   The objective…

Q: 46. A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes…

A: Given, Total discs n = 1067 No of non defective = 993 No of defective = 1067 - 993 = 74

Q: The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the…

A: Givensample size(n)=66p^=80%=0.80p=88%=0.88

Q: In a survey of 1,000 women aged 22 to 35 who work full time, 555 indicated that they would be…

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Q: In a certain school district, it was observed that 31% of the students in the element schools were…

A: Givenx=133n=363p^=xn=133363≅0.3664α=0.02

Q: In a certain school district, it was observed that 27% of the students in the element schools were…

A: The statement of the problem is “the proportion of only children in the special program is…

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A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.