Mathematics, 07.04.2020 18:37 greece145
G 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 99% confident that his estimate is in error by no more than four percentage points question mark Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. equals nothing (Round up to the nearest integer.) b) Assume that a recent survey suggests that about 88% of computers use a new operating system. equals nothing (Round up to the nearest integer.) c) Does the additional survey information from part (b) have much of an effect on the sample size that is required? A. Yes, using the additional survey information from part (b) dramatically reduces the sample size. B. Yes, using the additional survey information from part (b) dramatically increases the sample size. C. No, using the additional survey information from part (b) does not change the sample size. D. No, using the additional survey information from part (b) only slightly increases the sample size.
Answers: 2
Mathematics, 21.06.2019 17:30, meganenaranjo
If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
Answers: 1
Mathematics, 21.06.2019 23:10, paradisetiyae5261
Use the distance formula to find the distance between (-3,5) and (3,1)
Answers: 1
G A programmer plans to develop a new software system. In planning for the operating system that he...
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