Question 13
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.
At significance level, determine whether the new sensor has less variability than the old sensor.
The new sensor does not show less variability than the old sensor.
The new sensor has less variability than the old sensor.