Assume Facebook users click on ads P times out of every 100. What is the smallest sample size N such that Probability(ABS(hat{P}-P) DELTA) = 95 percent when we choose a sample of size N and analyze the sample's conversion rate, denoted by hat{P}?
Assume Facebook users click on ads P times out of every 100. What is the smallest sample size N such that Probability(ABS(hat{P}-P) DELTA) = 95 percent when we choose a sample of size N and analyze the sample's conversion rate, denoted by hat{P}?
题目类型: 技术面试题
这是一道技术面试题,常见于澳洲IT公司面试中。
难度: easy
标签: interviewbit, probability, topic-specific, statistics
参考答案摘要
Find the smallest sample size N that will allow our sample estimate of P to be, with a 95% confidence level, within a DELTA of the actual click-through rate P. The understanding of confidence interval...
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