Question: A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. She takes a random sample of

 A developer wants to know if the houses in two different

A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. She takes a random sample of six houses from each neighborhood and finds their ages from local records. The accompanying table shows the data for each sample? (in years). Complete parts a through e below.

a) Find the sample means for each neighborhood.

y1=enter your response here

years

y2=enter your response here

years?(Type integers or? decimals.)

Part 2?

b) Find the estimated difference of the mean ages of the two? neighborhoods,

y1?y2.

The estimated difference is

enter your response here

years.?(Type an integer or a? decimal.)

Part 3

?c) Find the sample variances for each neighborhood.

s21=enter your response here

s22=enter your response here

?(Type integers or? decimals.)

Part 4?

d) Find the sample standard deviations for each neighborhood.

s1=enter your response here

years

s2=enter your response here

years?(Round to two decimal places as? needed.)

Part 5?

e) Find the standard error of the difference of the two sample means.

SEy1?y2=enter your response here

years?(Round to two decimal places as? needed.)

neighborhoods were built at roughly the same time. She takes a random

A developer wants to know ifthe houses in two different neighborhoods were built at roughly the same time She takes a random sample of six houses from each neighborhood and nds their ages from local records. The accompanying table shows the data for each sample [in years). Complete parts a through e below a Click the icon to View the data table a) Find the sample means for each neighborhood. i, = years i2 = years (Type integers or decimals.) Data table in) Find the estimated difference of the mean ages of the two neighborhoods, y1 2. $11 The estimated difference is years . Neighborhood . (Type an integer or a decimal.) 1 Nelghborhood 2 c) Find the sample valiances for each neighborhood. (Type integers or decimals.) d) Find the sample standard deviations for each neighborhood. s1 2 years s2 2 years (Round to two decimal places as needed.) e) Find the standard error of the difference oi the two sample means. SEU;1 92) = years (Round to two decimal places as needed.)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!