Please answer by explaining each step and why you did it

that the sample mean is less than or equal to ( 3 / ). 7-69. A manufacturer of semiconductor devices takes a random sample of 100 chips and tests them, classifying each chip as defective or nondefective. Let ( X_{i}=0 ) if the chip is nondefective and ( X_{i}=1 ) if the chip is defective. The sample fraction defective is [ hat{P}=rac{X_{1}+X_{2}+cdots+X_{100}}{100} ]

7-69. A manufacturer of semiconductor devices takes a random sample of 100 chips and tests them, classifying each chip as defective or nondefective. Let Xi=0 if the chip is nondefective and Xi=1 if the chip is defective. The sample fraction defective is P^=100X1+X2++X100