Chapter 6.1 –30*, 36*
In addition, for Supplement-1, 30, and 36(a) also answer the following:
- Interpret the confidence interval;
- Has the assumption been met so that your interval is valid? Specify the assumption and justify your answer as to whether the assumption has or has not been met.
Supplement – 1: Apartment Rental Rates: You want to rent an unfurnished two-bedroom
apartment in Dallas next year. The mean monthly rent for a random sample of 10 apartments
advertised in the local newspaper is $1050. Assume that the monthly rate in Dallas follows a
Normal distribution with a standard deviation of $220. Find a 95% confidence interval for the
mean monthly rent for unfurnished two-bedroom available in Dallas.