Math

Statistics

An automobile tyre manufacturer is
comparing the tread life of its new tyres to
the tread life of its previous model to see if
they last significantly longer.
The values below are in thousands of
kilometres. .
• New Tyre: 130, 135, 125, 137, 128, 131,
140
• Old Tyre: 131, 132, 127, 129, 128, 134,
132
Perform a hypothesis test to determine if the
new tyres lasted significantly longer than the
old tyres with a 0.05 level of significance.