Me with multiple choice algebra question :
in a sample of 150 cars, 18 cars failed a safety inspection. the sampling method had a margin of error of 0.02.

what is the interval estimate for the proportion that would fail in the form (lower limit, upper limit) ?

a) (0.10,0.14)

b) (0.12,0.16)

c) (0.07,0.11)

d) (0.13,0.17)

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?