Answer:
(20.532 , 21.468)
Step-by-step explanation:
Enter data into L₁
CL= 0.95
df= 3
Distribution: xbar ~ t₃
Calculator commands (for TI only): [Stat],[TESTS],[TInterval],[Data],(List: L₁),(Freq:1),(C-Level:0.95),[Calculate]
Confidence interval (20.532,21.468)
We can conclude that the true population mean for bags of potatoes labeled 20.0 pounds is between (20.532,21,468) with a 95% confidence level.
Answer:
There are 4 pencils per students.
Step-by-step explanation:
To figure this out lets divide the amount of pencils (108) by the students (27). Let x equal this number.
108/27=x
Divide.
4=x
There are 4 pencils per student.
Answer: a) 0.8413, b) 0.9987.
Step-by-step explanation:
Since we have given that
Mean = 3 pounds
Standard deviation = 0.25 pounds
n = 28 bricks
So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?
b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?
Hence, a) 0.8413, b) 0.9987.
Answer:
C, one angle measures more than 90 degrees.
Step-by-step explanation:
All triangles have two acute angles (less than 90 degrees)
so that eliminates A and B.
A right triangle has one 90 degree angle, so it's not D.
Obtuse is more than 90 degrees so there goes E.
Hope this helps! :)
Answer:
3.5 Hours MARK ME AS BRAINLIEST PLEASE
Step-by-step explanation:
Take 458, and subtract 339 from it. Then, divide that by 34.