alyssaboosiefkes
26.03.2021 •
Mathematics
The National Health Statistics Reports dated Oct. 22, 2008 stated that for a sample size of 277 18- year-old American males, the sample mean waist circumference was 86.3 cm. A somewhat compli- cated method was used to estimate various popula- tion percentiles, resulting in the following values:
5th 10th 25th 50th 75th 90th 95th
69.6 70.9 75.2 81.3 95.4 107.1 116.4
Required:
a. Is it plausible that the waist size distribution is at least approximately normal? Explain your reasoning. If your answer is no, conjecture the shape of the population distribution.
b. Suppose that the population mean waist size is 85 cmand that the population standard deviation is 15 cm. How likely is it that a random sample of 277 individuals will result in a sample mean waist size of at least 86.3 cm?
c. Referring back to (b), suppose now that the population mean waist size in 82 cm. Now what is the (approximate) probability that the sample mean will be at least 86.3 cm? In light of this calculation, do you think that 82 cm is a reasonable value for μ?
Solved
Show answers
More tips
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
- H Health and Medicine Is Massage Necessary? Facts and Opinions...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics Two ants, arthur and amy, have discovered a picnic and are bringing crumbs back to the anthill. amy makes twice as many trips and carries one and a half times as many crumbs...
- M Mathematics The hour hand of a clock is 6 inches long and the minute hand is 8 inches long. what is the ratio of the distance in inches traveled by the tip of the hour hand to the distance...
- M Mathematics 10. how much rice will each person get if 5 people share 2/4 lb of rice equally?...
- M Mathematics Adata set consists of the following pairs of data: (3,5), (5,8), (6,13) will the correlation coefficient for these data points be positive or negative?...
- M Mathematics Asample of a radioactive material decays over time. !...
- M Mathematics How to convert 80 kilometers per hour is 60 miles per hour?...
- M Mathematics There are four diferent kinds of animal on the farm. there is a diferent number of each kind of animal. there are 19 more cows than sheep. there are 19 more ducks than hens....
- M Mathematics C4. what is the simplified form of 345e 15c ? b) 6c9 se 4315c 54) 12a...
- M Mathematics From a group of 7 people, you randomly select 2 of them. what is the probability that they are the 2 of the oldest people in the group? give your answer as a fraction....
- M Mathematics Plz check my answer and with the second part. will mark brainiest triangle abc is translated 1 unit right and 2 units down what are the coordinates of the translated triangle?...
Ответ:
square root of 100 is 10
square root of 169 is 13