Mathematics, 24.04.2020 20:17, cooper2017
A random sample of 500 army recruits has a mean height of 68 inches with a standard deviation of 2.5 inches. if a 95% confidence interval is constructed, with all conditions having been met, what is the margin of error?
A) 68
B) 6.02
C) .22
D) .184
Answers: 3
Mathematics, 21.06.2019 22:00, taliyahjhonson1
The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample
Answers: 1
Mathematics, 22.06.2019 02:30, ayoismeisalex
Grading scale 1 has the following weights- (tests- 50% quiz- 25% homework- 15% final exam- 10%). calculate your final average if your performance in the class is as follows-test grades- {88, 84, 90, 75, 70, 81); quiz grades- {88, 67, 90, 90, 45, 99, 76, 98, 100}; homework- 90; final exam- 75
Answers: 1
A random sample of 500 army recruits has a mean height of 68 inches with a standard deviation of 2.5...
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