A New Organic Pest Control Formula Is Being Tested on Potato

Multiple Choice

A new organic pest control formula is being tested on potato plants to see whether it can reduce the level of potato beetle infestation. The mean number of beetles per untreated
Plant is 7. It is hoped that the new formula may reduce this infestation rate. State the
Appropriate null and alternate hypotheses.

A) $H _ { 0 } : \mu = 7 , H _ { 1 } : \mu < 7$
B) $H _ { 0 } : \mu < 7 , H _ { 1 } : \mu > 7$
C) $H _ { 0 } : \mu < 7 , H _ { 1 } : \mu = 7$
D) $H _ { 0 } : \mu = 7 , H _ { 1 } : \mu \neq 7$