Suppose that you interview 100 exiting voters about who they voted for governor.  Of the 100 voters, 55 reported that they voted for the democratic candidate.  Is there sufficient evidence to suggest that the democratic candidate will win the election (gets at least 50% of votes) at the .01 level?     Select one: a. T=1, there is evidence that the candidate will win. b. Z=1, there is evidence that the candidate will win. c. Z=1, there is no evidence that the candidate will win. d. T=1, there is no evidence that the candidate will win.

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A: Given information: Percentage of the respondents who stated that they talk to their pets on the…

Q: A research center claims that at least 28% of adults in a certain country think that their taxes…

A: From the provided information, Population proportion (p) = 0.28 a) The hypotheses can be constructed…

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A:

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Q: In a small town of 5,832 people, the mayor claims that there is a difference in the proportion of…

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Q: A research center claims that at least 30% of adults in a certain country think that their taxes…

A: Given, n = 1000 p^=0.26 α = 0.01

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A:

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A:

Q: At α = .05, test to determine if the type of car purchased is independent of the city in which the…

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Q: In a survey, 43% of the respondents stated that they talk to their pets on the telephone. A…

A: Given Information: 43% of the respondents stated that they talk to their pets on the telephone. A…

Q: In a survey, 32% of the respondents stated that they talk to their pets on the telephone. A…

A: Givenn=200x=60p^=xn=60200=0.3H0:P=0.32H1:P<0.32α=0.05

Q: After attending a church cookout, a number of the attendees are admitted to the emergency room with…

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Q: According to a recent marketing campaign, 100100 drinkers of either Diet Coke or Diet Pepsi…

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Q: According to a recent marketing campaign, 00 drinkers of either Diet Coke or Diet Pepsi participated…

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Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: Given,n=273x=63p^=xnp^=63273=0.2308

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A: Here we need to calculate the value of the Z statistic.

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A:

Q: A research center claims that at least 24% of adults in a certain country think that their taxes…

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Q: previous food service, a sample of 93 current students is taken and finds that 40 are satisfied with…

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A: Given:

Q: In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A…

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Q: A polling organization announces that the proportion of American voters who favor congressional term…

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Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Given: x = 54n=160p^=xn=54160=0.3375α=0.01 The test hypothesis are, H0: p = 0.37 H1: p < 0.37.…

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A: The following information has been provided: Categories Observed Expected Proportions A =…

Q: In a survey, 43% of the respondents stated that they talk to their pets on the telephone, A…

A: The hypothesized proportion is 0.43.

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A: Given: Population proportion (p) = 0.05 Sample proportion p^=19420=0.04524

Q: A fish biologist hypothesizes that the proportion of fish in Lake Ontario that are Black Carp has…

A:

Q: At LLD Records, some of the market research of college students is done during promotions on college…

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Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…

A: Given Information: Claim: Average municipal taxes have fallen by $150. Sample size n=45 Population…

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.