Answer: A negative
Step-by-step explanation:
The opposite of a negative is positive, the opposite of a positive is a negative.
Well, since the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 6% of 80%, that means there is a 90% confidence interval. 9 / 10 = .90 = 90% 90% = 1.645 1.645 * .9 = 1.4805 Margin of Error - 1.4805and The margin of error is the distance from x-bar, the center of the confidence interval ,to the end of the interval. This distance is 6% of 80% which is given by: 80×6100=4.8 Therefore the margin of error is 4.8% and the confidence interval is: ({80 - 4.8}%, {80 + 4.8}%)
Answer:
third one
Step-by-step explanation:
$2.25 because you have to multiply 9 by the percentage (0.25)
Answer:
0.03, (3 x 1/100) + (3 x 1/1000), 3 tenths
