Question 4 (2 points) When a sampling technique introduces a considerable amount of bias, increasing the sample size will help reduced the bias. O True False Question 5 (3 points) A county with a large population need to know what the average income is for tax purposes. A simple random sample of 1000 household reveals the following information. The average household income for the sample is $21,000. The median income of the sample is $17,000. The SD of the sample is $10,000, Q1 = $11,000 and Q3 = $24,000. What is the best estimate of the mean household income in this county? $1000 $21,000 $17,000 $24,000