In a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not they exercise regularly (more than twice a week). The results are summarized in the table below. Smoke Do not smoke Exercise regularly 12 34 Do not exercise 36 118 regularly (a) What percentage of the adults smoke? (b) What percentage of the adults exercise regularly?

Q: A research report from an independent-measures study states that there are significant differences…

A: a)From the given information, the degrees of freedom treatment is 3.

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Q: If a sample of 23 swimmers is taken from a population of 74 swimmers, the population mean, u, is the…

A: We have given that a sample of 23 swimmers is taken from a population of 74 swimmers.

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A: There are two ways to draw conclusion about a population.

Q: Which is a statistical question? How old was George Washington when he became president? How many…

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Q: 5. What percent of the sophomores watch TV for at least 15 minutes per night?

A: Following statistics is given for TV time   Minimum = 0 minutes Q1 = 15 minutes Q2 = 60 minutes Q3 =…

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A:

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A:

Q: According to The Census Bureau, 60% of adults buy clothing online. a) How many adults did they…

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Q: ching basketball to football?

A: We have to use % formula to solve the problem

Q: A research report from an independent-measures study states that there are significant differences…

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A:

Q: In a survey, editors of a magazine asked 250 people whether or not they smoke and whether or not…

A: The answer is explained below,

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A:

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A:

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Q: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

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A:

Q: 8. A research report from an independent-measures study states that there are significant…

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A:

Q: How many scores are in the population?

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Q: In a series of houses actually invaded by smallpox, 70% of the inhabitants are attacked and 85% have…

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Q: Approximately what percent of students own somewhere between 30 and 50 CDs? O 50% O 4% O 20% O 25%

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A:

Q: What is the proportion of free apps available in the App store?

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A:

Q: A research report from an independent-measures study states that there are significant differences…

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Q: C1. A computer spam filter is 98% effective at sending spam emails to my junk folder, but will also…

A: Solution

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.