You want to rent an unfurnished one-bedroom apartment in boston next year. the mean monthly rent for a simple random sample of 30 apartments advertised in the local newspaper is $1,450. the standard deviation of the population is $220. find a 99% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community.

99% confidence interval would be

Step-by-step explanation:

Since we have given that

Sample size = 30

Sample mean = $1450

Standard deviation = $220

We need to find the 99% confidence interval.

So, z = 2.58

So, confidence interval would be

Hence, 99% confidence interval would be

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers