![aakakaa](/avatars/12223.jpg)
aakakaa
29.01.2021 •
Mathematics
Find the measure of an interior and exterior regular 24gon
Solved
Show answers
More tips
- F Family and Home Do You Really Need a Playpen for Your Child?...
- F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
- C Computers and Internet Log-in: what is it and why do you need it?...
- 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?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics Suppose a student typically spends 5/2 hours each week doing research on the Internet. How much research time does a student spend each device in 1 week?...
- M Mathematics A triangle has sides with lengths of 12 kilometers, 35 kilometers, and 37 kilometers. Is it a right triangle?...
- M Mathematics Can someone pls help will give brainliest...
- M Mathematics Peter hired a cleaning company to clean his house. The cleaning company charges a fixed fee $15 plus $17 per hour to clean a house...
- M Mathematics PLEASE HELP Using Angle Relationships to Solve Equations...
- M Mathematics Two numbers total 60 and have a difference of 30. Find the two numbers. The larger number is and the smaller number is...
- M Mathematics A solution comes in a strength of 1:2000. You have 1000 ml of this.When it is diluted with 4000ml of water, how strong is it now per 50ml?...
- M Mathematics What s the volume of a figure with that is 10 inches wide, 3 inches tall, and 5 inches long...
- M Mathematics How would you evaluate this?...
- M Mathematics Please help, geometry test...
Ответ:
a. B) 1.432
b. E) I and IV
Step-by-step explanation:
a. Margin of error to construct a 99% confidence interval is calculated as
where
t is the critical value expressed as t-score, which comes from t-distribution;
s is sample standard deviation
n is sample size
In this case, a t-score is used because the population standard deviation is unknown and the sample size is small, n < 30.
The way to find t-score is:
1) Define the degree of freedom, which is sample size minus 1: df = n - 1;
2) Compute alpha:
;
3) Find the critical probability:![p=1-\frac{\alpha}{2}](/tpl/images/1155/2505/43488.png)
With the df and critical probability, consulte the t-distribution table and find the score.
For the cheese filling:
df = 24
p = 0.995
t-score = 2.797
Calculating margin of error:
ME = 1.432
The margin of error to construct a 99% confidence interval for the true mean amount of cheese filling is 1.432.
b. Confidence interval is an interval in which we have a percentage of certainty that the true population mean is. For example, with a 99% confidence interval of 14.16 to 15.84 grams, we are 99% confident that the true mean weight of cheese filling is between those numbers or that the weight of cheese filling is between 14.16 and 15.84 grams 99% of the time.