Statistic/Parameter In an AARP survey of 1019 randomly selected adults, the respondents were asked to identify the number of credit cards they have, and 26% of them said they had no credit cards. Is the value of 26% a statistic or a parameter?

Q: In a recent Gallup poll, pollsters randomly selected adults and asked them whether they smoke.…

A: Introduction There are 2 types sampling methods: Prob. methods Non-Prob. methods

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A: The term used to describe this type of survey is C. The respondents are a voluntary response…

Q: Claim: Fewer than 92​% of adults have a cell phone. In a reputable poll of 1137 ​adults, 82​%…

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Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: How are income and degree related? The American National Election Survey asked respondents who…

A: Given: ID DEGREE INCOME EDUC 1 0 127500 13 3 1 32500 16 5 1 82500 16 6 0 6250 14 7 1…

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A: It is given that:

Q: 448 students from UC Berkeley are surveyed about whether they are from Northern California, South…

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Q: According to the Government Accountability Office, 80% of all college students ages 18 to 23 nad…

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Q: In a survey conducted by a reputable marketing agency, 248 of 1000 adults 19 years of age or older…

A: Given that ; Sample size (n) = 1000 adults No. Of adults using their cell phones in every bathroom…

Q: Please do not give solution in image format thanku A confidential survey aims to estimate the…

A: It is given that, a random number between  and  (both inclusive) is to be chosen.For a chosen number…

Q: In a survey conducted by a reputable marketing agency, 277 of 1000 adults 19 years of age or older…

A: Sample size (n) = 1000 adultsNo. Of adults using their cell phones in every bathroom trip (x) = 277

Q: A study claims that a normal female body has a temperature of 98.6 degrees Fahrenheit. The body…

A: The t test are used to make mean significant between the sample and population. It also used to make…

Q: When having random numbers what is used SURVEYS OR EXPERIMENTS?

A: Here's the explanation for this is as follows; Note that ,Experiment came from the Latin word…

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A: A population is a collection of all possible observations, whereas a census tries to gather whole…

Q: I am doing a survey and want to know how many siblings each participant has. Participant 3 leaves…

A: Introduction: Consider that there are n participants in the study. Each participant is asked how…

Q: Claim: Fewer than 93​% of adults have a cell phone. In a reputable poll of 1170 ​adults, 87​% said…

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Q: If you want to conduct a study to determine how much people exercise from a certain town, what would…

A: In this scenario, it is appropriate to call randomly selected cell phone numbers of people living in…

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A: The categorical variable is outcome. We have to find the expected values for each outcome. This is…

Q: Consider the sample 13, 19, 18, 20, 16, 9, 10, 7, and 8. Find the mean? Show the solution and write…

A: Given that  The data are X : 13, 19, 18, 20, 16, 9, 10, 7, 8.

Q: The FiveThirtyEight website did a survey of people about their attitudes about the pandemic and…

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Q: Food services sent a survey to student, faculty, and staff in order to understand the lunch…

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Q: Multiple Choice Question Identify the type of sampling used in the following scenario: To get…

A: # Identify the type of sampling used in the following scenario:? To get reactions about a new type…

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Q: Students in a math class took a 10 point quiz. The scores were: 3, 6, 6, 7, 7, 8, 8, 8, 8, 8, 8, 9,…

A: Mean Let "X" be the math scores. 3 6 6 7 7 8 8 8 8 8 8 9 9 9 10 10 10

Q: Test whether there is a difference between two groups in the proportion who voted, if 45 out of a…

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Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A: Given that n=446 p^=63%=0.63 Let p=0.5

Q: To assess attitudes towards issues that affect the residents of a town, the town randomly chose 500…

A: Given data: Sample size (n) = 500 families Town received (x) = 370 completed surveys

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.