As part of BEEPS, firms that import goods answered the question, \"How many days

Question

As part of BEEPS, firms that import goods answered the question, "How many days does it take from the time your goods arrive in their port of entry until the time you can claim them from austoms?" For the sample of 35 importing firms in Armenia, the sample mean R was 8.3 days, and the sample standard deviation s was 9.9 days The standard deviation of the population distribution is unknown, but you are willing to assume that the population distribution is not highly skewed and contains no outliers To develop a 99% confidence interval estimate of the mean number of days it takes for imported goods to clear customs in Armenia, use the t distribution with 25 degrees of freedom standard normal distribution t distribution with 35 degrees of freedom Use the Distributions tool to t distribution with 34 degrees of freedom imported goods to clear customs in Armenta the mean number of days it takes for Select a Distribution Distributions You are 99% confident that the mean wait time for imported goods to clear customs in Armenia is between and

Explanation / Answer

Since we do not know the population standard deviation, we can't use standard normal distribution here.

Degrees of freedom = n - 1 = 35 - 1 = 34

Hence,

The distribution will be t distribution with 34 degrees of freedom.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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