masaiyahrhemanow
15.12.2020 •
Mathematics
PLEASE HELP PLEASE I WANT TO GO TO SLEEP AHHHH
Solved
Show answers
More tips
- G Goods and services How to Choose a Bread Maker?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- 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 Write the inverse function for f(x)2/3x-4...
- M Mathematics An office has 30 computers. seventeen of the 30 are macintosh, and the remaining thirteen are windows. two computers are randomly selected without replacement. what is the...
- M Mathematics Consider the point. (4, 5, 6) what is the projection of the point on the xy-plane? (x, y, z) = what is the projection of the point on the yz-plane? (x, y, z) = what is the...
- M Mathematics 14. two figures are shown below. each figure models a different equation.the equation x + 4 = 14 is modeled by figure 1.figure 1: 1: : 1: -figure 2: hina...
- M Mathematics 17.5-3.5 3²+1 what is the answer...
- M Mathematics Karmin made $480 working for 30 hours. This month she will get a 15% increase in the amount she earns per hour. What will her hourly rate in dollars after the increase?...
- M Mathematics Steve is going to the prom. He has choice of black, white or red tuxedo, short or long coat tails and 4 different colors of bow ties. How many outfits can Steve make from these...
- M Mathematics An article suggests the uniform distribution on the interval from 7.5 to 20 as a model for x = depth (in centimeters) of the bioturbation layer in sediment for a certain region....
- M Mathematics Help pls :( write congruent statements comparing the corresponding parts in the congruent figures shown...
- M Mathematics A research center is interested in finding a state population s view on a specific candidate for governor. Researchers identify a random sample of 1,000 people from the population...
Ответ:
im in 6th grade im dum
Step-by-step explanation:
Ответ:
The 80% confidence interval for the population mean is (2.156, 2.394).
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 8 - 1 = 7
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 7 degrees of freedom(y-axis) and a confidence level of
. So we have T = 1.415
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 2.275 - 0.119 = 2.156
The upper end of the interval is the sample mean added to M. So it is 2.275 + 0.119 = 2.394
The 80% confidence interval for the population mean is (2.156, 2.394).