Question: 3. 15 1 70 O e. 26.773% QUESTION 7 The expected value of the sampling distribution of the sample mean equals the mean of a

3. 15 1 70 O e. 26.773% QUESTION 7 The expected value of the sampling distribution of the sample mean equals the mean of a single observation a. only when the distribution is symmetric. O b. always. O C. only when the mean is zero. O d. only when the sample size is sufficiently large. O e. only when the random variable follows a normal distribution. QUESTION 8
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