Question 12
A laboratory is testing a new temperature sensor to check whether it provides more consistent readings than the old model. The lab records the temperature (in oC) from 5 repeated measurements using the new sensor: 10, 8, 2, 5, 15 The old temperature sensor has a known standard deviation of . Based on the above data, answer the given subquestions.
Compute the sample variance of the 5 temperature readings from the new sensor. Enter the answer correct to one decimal place.