Author Question: When using interval data, one cannot A) set up inequalities. B) form differences. C) divide. D) ... (Read 55 times)

Collmarie · **on:** Jul 25, 2018

When using interval data, one cannot

A) set up inequalities. B) form differences. C) divide. D) do any of these.

Question 2

A computer package was used to generate the following printout for estimating the sale price of condominiums in a particular neighborhood.

X = sale_price

SAMPLE MEAN OF X = 46,400
SAMPLE STANDARD DEV = 13,747
SAMPLE SIZE OF X = 15
CONFIDENCE = 98

UPPER LIMIT = 55,713.80
SAMPLE MEAN OF X = 46,400
LOWER LIMIT = 37,086.20

What assumptions are necessary for any inferences derived from this printout to be valid?
A) The sample variance equals the population variance.
B) The population mean has an approximate normal distribution.
C) The sample was randomly selected from an approximately normal population.
D) All of these are necessary.