A certain company produces vinyl for records in three grades (A, B, and C). Over time, grade A vinyl has a 3% defective rate, grade B vinyl has a 5% defective rate, and grade C vinyl has a 10% defective rate. Since grade A vinyl is less likely to be defective, the company can charge more money than it can charge for the other two grades. The company can also charge more money for grade B vinyl than grade C vinyl. Recently, the company found a batch of unlabeled vinyl in a warehouse. They could determine the vinyl was from the same batch. The company randomly sampled 150 discs and found 8 defective discs. (a) Construct and interpret a 90% confidence interval for the proportion of defective discs in the batch. (b) Does the interval calculated in part (a) clearly allow the company to determine the grade of the vinyl?

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: