Author Question: A realtor collected the following data for a random sample of ten homes that recently sold in her ... (Read 38 times)

storky111 · **on:** Feb 14, 2020

Question 1

A company keeps extensive records on its new salespeople on the premise that sales should increase with experience. A random sample of seven new salespeople produced the data on experience and sales shown in the table.

Summary statistics yield SS_xx = 94.8571, SS_xy = 124.7571, SS_yy = 176.5171,

= 5.8571, and

Calculate a 90% confidence interval for E(y) when

Assume

and the prediction equation is

Question 2

A realtor collected the following data for a random sample of ten homes that recently sold in her area.

House	Asking Price	Days on Market
A	$114,500	29
B	$149,900	16
C	$154,700	59
D	$159,900	42
E	$160,000	72
F	$165,900	45
G	$169,700	12
H	$171,900	39
I	$175,000	81
J	$289,900	121

a.	Find a 90% confidence interval for the mean number of days on the market for all houses listed

at $150,000.

b.	Suppose a house has just been listed at $150,000. Find a 90% prediction interval for the number

of days the house will be on the market before it sells.

wshriver · **Reply #1 on:** Feb 14, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 25% of students answer this correctly