Arandom sample of 50 units is drawn from a production process every half hour. the fraction of nonconforming product manufactured is 0.02. what is the probability that ̂0.04 if the fraction nonconforming really is 0.02

To solve this problem, we solve for the z score of proportions. Using the formula:

z = (p1 – p2) / sqrt [(p2 (1 – p2) / n)]

where,

p1 = 0.04

p2 = 0.02

n = 50

Therefore:

z = (0.04 – 0.02) / sqrt [(0.02 (1 – 0.02) / 50)]

z = 1.01

From the standard probabilities table, the p value for this right tailed test at z = 1.01 is:

P = 0.1562

Therefore there is a probability of 0.1562 or 15.62% that the nonconforming would be 0.04 and above

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3