Mathematics
Mathematics, 08.03.2021 22:40, he0gaubong

Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female deer (does) in December in a national park. Then x has a distribution that is approximately normal with mean = 62.0 kg and standard deviation = 9.0 kg. Suppose a doe that weighs less than 53 kg is considered undernourished. (a) What is the probability that a single doe captured (weighed and released) at random in December is undernourished? (Round your answer to four decimal places.)

(b) If the park has about 2150 does, what number do you expect to be undernourished in December? (Round your answer to the nearest whole number.)

(c) To estimate the health of the December doe population, park rangers use the rule that the average weight of n = 80 does should be more than 59 kg. If the average weight is less than 59 kg, it is thought that the entire population of does might be undernourished. What is the probability that the average weight x for a random sample of 80 does is less than 59 kg (assuming a healthy population)? (Round your answer to four decimal places.)

(d) Compute the probability that x < 63.3 kg for 80 does (assume a healthy population). (Round your answer to four decimal places.)

Suppose park rangers captured, weighed, and released 80 does in December, and the average weight was x = 63.3 kg. Do you think the doe population is undernourished or not? Explain.
a. Since the sample average is below the mean, it is quite unlikely that the doe population is undernourished.
b. Since the sample average is above the mean, it is quite likely that the doe population is undernourished.
c. Since the sample average is above the mean, it is quite unlikely that the doe population is undernourished.
d. Since the sample average is below the mean, it is quite likely that the doe population is undernourished.

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:00, gbrightwell
Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.
Answers: 3
image
Mathematics, 21.06.2019 19:00, Lindy1862
You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?
Answers: 1
image
Mathematics, 21.06.2019 19:00, william03300
Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?
Answers: 1
image
Mathematics, 21.06.2019 20:00, xxaurorabluexx
Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,
Answers: 3
Do you know the correct answer?
Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female dee...

Questions in other subjects:

Konu
Spanish, 01.12.2020 03:50