A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 95% confident that his estimate is in error by no more than three percentage points question mark?
a. Assume that nothing is known about the percentage of computers with new operating systems. n=.(Round up to the nearest integer.)
b. Assume that a recent survey suggests that about 96% of computers use a new operating system. n=.(Round up to the nearest integer.)

 a. n= 1068

b. n= 164

Step-by-step explanation:

The formula to find the sample size :

, where p=prior population proportion , z* = critical z-value and E = Margin of error.

Here , let p=proportion of computers that use a new operating system.

Given : Confidence level = 95%

i.e. z* = 1.96  [by z-table]

Margin of error : E = 3% =0.03

a. If p is unknown , then we assume p=0.5

Then,

i.e. n= 1068

b. p=0.96

Then,

i.e. n= 164.

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

answer: $1794

step-by-step explanation: