Assume that females have pulse rates that are normally distributed with a mean of
mu equals 75.0μ=75.0
beats per minute and a standard deviation of
sigma equals 12.5σ=12.5
beats per minute. Complete parts (a) through (c) below.
a. If 1 adult female is randomly selected, find the probability that her pulse rate is between
7171
beats per minute and
7979
beats per minute.The probability is
nothing.
(Round to four decimal places as needed.)
b. If
1616
adult females are randomly selected, find the probability that they have pulse rates with a mean between
7171
beats per minute and
7979
beats per minute.The probability is
nothing.
(Round to four decimal places as needed.)
c. Why can the normal distribution be used in part (b), even though the sample size does not exceed30?
A.
Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size.
B.
Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size.
c ) Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size.
Assume that females have pulse rates that are normally distributed with a mean of mu equals...
Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0?=72.0 beats per minute and a standard deviation of sigma equals 12.5?=12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 6565 beats per minute and 7979 beats per minute.The probability is nothing. (Round to four decimal places as needed.) b. If 44 adult females are randomly...
Assume that females have pulse rates that are normally distributed with a mean of mu equals 74.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 68 beats per minute and 80 beats per minute. The probability is nothing. (Round to four decimal places as needed.) b. If 25 adult females are...
Assume that females have pulse rates that are normally distributed with a mean of mu equals 74.0μ=74.0 beats per minute and a standard deviation of sigma equals 12.5σ=12.5 beats per minute. Complete parts (a) through (c) below.a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 6767 beats per minute and 8181 beats per minute.The probability is nothing. (Round to four decimal places as needed.) b. If 44 adult females are randomly selected,...
Assume that females have pulse rates that are normally distributed with a mean of u = 73.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 76 beats per minute. The probability is . (Round to four decimal places as needed.) b. If 4 adult females are randomly selected, find the...
Assume that females have pulse rates that are normally distributed with a mean of u = 72.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. The probability is (Round to four decimal places as needed.) b. If 4 adult females are randomly...
Assume that females have pulse rates that are normally distributed with a mean of u - 76.0 beats per minute and a standard deviation of e- 12.5 beats per minute. Complete parts(a) through (c) below. a. f 1 adult female is randomly selected, find the probability that her pulse rate is between 70 beats per minute and 82 beats per minute. The probability is (Round to four decimal places as needed.) b. 25 adult females are randomly selected, find the...
Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per minute and a standard deviation of a = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 69 beats per minute and 81 beats per minute. The probability is (Round to four decimal places as needed.) b. If 25 adult females are randomly...
Assume that females have pulse rates that are normally distributed with a mean of p = 75.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 71 beats per minute and 79 beats per minute. The probability is (Round to four decimal places as needed.) b. If 25 adult females are randomly...
Assume that females have pulse rates that are normally distributed with a mean of μ = 73.0 beats per minute and a standard deviation of σ = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 79 beats per minute The probability is Round to four decimal places as needed.) b. If 25 adult females are randomly selected, find the probability...
Assume that females have pulse rates that are normally distributed with a mean of u = 74.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 81 beats per minute. The probability is (Round to four decimal places as needed.) b. If 16 adult females are randomly selected, find the probability...