Mathematics, 08.04.2020 05:26 binava

In a study of 250 adults, the average heart rate was 70 beats per minute. Assume the population of heart ra
standard deviation of 12 beats per minute. What does a margin of error of 2 for the 98% confidence interva
There is a 1% chance that the population mean is less than 70 beats per minute
There is a 1% chance that the population mean is more than 70 beats per minute
There is a 99% chance that the population mean is between 58 and 82 beats per minute.
There is a 99% chance that the population mean is between 68 and 72 beats per minute.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, kmshacklette9879

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

Answers: 1

continue

Mathematics, 21.06.2019 17:00, zacksoccer8279

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Answers: 1

continue

Mathematics, 21.06.2019 18:20, sweetbri7p5v6tn

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0

Answers: 1

continue

Mathematics, 21.06.2019 21:30, celeste961

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Answers: 2

continue

You know the right answer?

In a study of 250 adults, the average heart rate was 70 beats per minute. Assume the population of h...