10.00 points Afamily is relocating from St. Louis, Missouri to California. Due t

Question

10.00 points Afamily is relocating from St. Louis, Missouri to California. Due to an increasing St Louis it is taking longer than before to sell a house. The inventory of houses in their house on the market. Her realtor friend in wife is concerned and wants to when is an of days that the last 28 in their neighborhood took average time 220 to sell. The realtor also tells them that based on her prior population standard deviation is 40 days. Use Table 1 a. What assumption regarding the population is necessary for making an interval estimate for the population mean? Assume that the central limit theorem applies. o Assume that the population has a normal distribution b. Construct the interval for the mean sale time for all homes in the neighborhood. (Round 2 decimal calculations to 4 decimal places. Round "z-value" to 3 decimal places and final answer to places.) Confidence interval Hints References Check my work

Explanation / Answer

from normal value table

a)90% level for sample of 9 observations : t =1.8595

b) 95% level for sample of 9 observations t=2.306

c)90% level for sample of 27 observations : t =1.7056

d)95% level for sample of 27 observations : t =2.0555

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

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