subject
Mathematics, 02.05.2021 03:40 michaellab1

A delivery company is logging the number of miles each employee drives each day. The company found an average of about 85.6 miles. Assume that the standard deviation is 9.85 miles and that a random sample of 50 drivers was used to determine the average. Which statements are true about this situation? 1.)The 99% confidence interval is from about 81.43 to 90.58 miles.
2.)The 95% confidence interval is from about 82.87 to 88.33 miles.
3.)The margin of error for 95% confidence is about 2.52 miles.
4.)The sample isn’t large enough to use a normal distribution.
5.)The margin of error for 99% confidence is about 3.59 miles.
There are multiple answers

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 14:00
Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.
Answers: 1
question
Mathematics, 21.06.2019 17:30
Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?
Answers: 1
question
Mathematics, 21.06.2019 20:30
1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6
Answers: 1
question
Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0
Answers: 2
You know the right answer?
A delivery company is logging the number of miles each employee drives each day. The company found a...
Questions
question
Mathematics, 27.06.2019 15:30
Questions on the website: 13722363