How many hours per week do gamers play video games? A simple random sample of 44 U.S. gamers age 13 or older are given below. 8.7 6.3 8.5 6.6 6.8 7.1 8.9 12.7 7 5.8 8 10.3 8.4 11.2 7.9 10.7 10.2 7.2 6.6 6.3 7.1 8.3 9.4 8.5 10.2 10.5 5.3 9.8 9.4 10.2 10.8 9.4 7.8 10.8 8.9 8.2 7.4 6.7 8.4 9.7 6.6 8.3 10.1 7.8 a.) Find a 92% confidence level for the population average time per week a gamer 13 or older plays video games. (Round answers to two decimal place.) margin of error:  ?  hr/wk lower limit:  ?  hr/wk upper limit:  ?  hr/wk Interpret: We are (?)% confident that the population mean time per week a gamer 13 or older plays video games is between(?)  hours and (?) hour .

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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.