Question

Many families in california are using backyard structures for home offices, art studios, and hobby areas as well as for additional storage. suppose that the mean price for a customized wooden, shingle backyard structure is $3100. assume that the standard deviation is $1200.

a. what is the z-score for a backyard structure costing $2300

Answer 1

The z-score is calculated as -

Z-score = (X - mean) / Standard deviation

Given,

Mean = $ 3100

Standard deviation = $ 1,200

X = 2,300

Z-score = (2300 - 3100) / 1200 = - 0.67

Thus, Z-score = - 0.67