46. A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 1. Suppose a sample of 1067 floppy disks is drawn. Of these disks, 993 were not defective. Using the data, estimate the proportion of disks which are defective. Enter your answer as a fraction or a decimal number rounded to three decimal places. Answer: Step 2. Suppose a sample of 1067 floppy disks is drawn. Of these disks, 993 were not defective. Using the data, construct the 80% confidence interval for the population proportion of disks which are defective. Round your answers to three decimal places. Answer: Lower endpoint: Upper endpoint:

Q: Number 27

A:

Q: Let Mbe as in Equation (3.14) and let X = [1, 0, ½]¹. Show that the entries of Y=MX sum to 1.

A:

Q: 4 1/2 + 3 2/3=

A: Given,

Q: 11 35

A:

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.