subject
Mathematics, 16.04.2021 01:00 YoEsMyles3115

In a study of 225 adults, the average heart rate was 72 beats per minute. Assume the population of heart rates is known to be approximately normal, with a standard deviation of 10 beats per minute. What does a margin of error of 1.1 for the 90% confidence interval of the average beats per minute mean? There is a 90% chance that the population mean is between 70.9 and 73.1 beats per minute.
There is a 90% chance that the population mean is between 62 and 82 beats per minute.
There is a 10% chance that the population mean is less than 72 beats per minute.
There is a 10% chance that the population mean is more than 72 beats per minute.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 20:30
Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints
Answers: 1
question
Mathematics, 21.06.2019 22:00
You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?
Answers: 2
question
Mathematics, 21.06.2019 22:50
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
Answers: 2
question
Mathematics, 21.06.2019 23:40
Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder
Answers: 1
You know the right answer?
In a study of 225 adults, the average heart rate was 72 beats per minute. Assume the population of h...
Questions
question
Mathematics, 02.12.2019 02:31
question
Physics, 02.12.2019 02:31
Questions on the website: 13722363