A sociologist is comparing the proportion of teenageboys who receive a text message at least once an hour tothe percentage of teenage girls who do. She has collected data from 150 men and 150 women. Which of the follow-ing is NOT a condition that the sociologist should check before creating a confidence interval for the difference inpopulation proportions?A) The samples are each approximately Normal.B) There at least 10 successes and 10 failures in eachsample.C) The male sample and female sample are independent.D) The people in each sample were selected at random.E) No more than 10% of each population was sampled.

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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.