(a) If the true mean is .9560 with a standard deviation of 0.0050, within what interval will 95 percent of the sample mean your answers to 4 decimal places.) The interval is from to (b) If the true mean is .9560 with a standard deviation of 0.0050, what is the sampling distribution of X ? 1. Exactly normal with u = .9560 and O = 0.0050. 2. Approximately normal with u = .9560 and o = 0.0050. 3. Exactly normal with u =.9560 and o; = 0.0050/36. 4. Approximately normal with u = .9560 and o; = 0.0050/V36.

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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.