ping uistribution of the sample mean? a) b) c) d) The mean of the sampling distr

Question

ping uistribution of the sample mean? a) b) c) d) The mean of the sampling distribution is always The standard deviation of the sampling distribution is always The shape of the sampling distribution is always approximately normal. All of the above are true. Sales prices of baseball cards from the 1960s are known to possess a right skewed distribution with a mean sale price of $5.25 and a standard deviation of $2.80. Suppose a random sample of 100 cards from the 1960s is selected. Describe the sampling distribution for the sample mean sale price of the selected cards. 5. a) Right skewed with a mean of $S.25 and a standard error of $2.80 b) Normal with a mean of $5.25 and a standard error of $0.28 c) Right skewed with a mean of $S.25 and a standard error of S0.28 d) Normal with a mean of $S.25 and a standard error of $2.80

Explanation / Answer

5) sampling distribution will be approximately normal with mean same as population mean i.e. 5.25

Standard deviation of sampling distribution = 2.8 / sqrt(100) = 0.28

Option-B) normal with a mean of $5.25 and standard error of $0.28

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.