Twenty years ago, 53% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science recent survey found that 299 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math an science. Do parents feel differently today than they did twenty years ago? Use the a = 0.05 level of significance. Because npo (1- Po) = 211.7 > 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) cannot be reasonably assumed to be random, is given to be random, can be reasonably assumed to be random, is given to not be random,

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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.