Clyde simplified ( j-8)-2. j Superscript (negative 8) + (negative 2) baseline = j superscript negative 10 Baseline = Start Fraction 1 Over j Superscript 10 End Fraction
What error did Clyde make, and what is the correct simplified form?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics