m above with a 95 % confidence interval:

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Q: estimate the sample size for a population of 750 people.

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Q: The test statistic is t = (Round to three decimal places as needed.)

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A: Z is known as standard normal variable Z=(X-mean)/standard deviation

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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.