Answer:
Answer: 704
Step-by-step explanation:
Volume of cuboid- 80x44x25=88000 cm cube
volume of each 5cm cubes= 5x5x5=125 cm cube
Therefore 88000/125=704.
<span>a)
2=(x-2.7)/.5
(2)(.5) = x-2.7
1=x-2.7
x=3.7
-2.5=(x-2.7)/.5
(-2.5)(.5) = x-2.7
-1.25 =x-2.7
x=2.7-1.25 = 1.45
b)
95% of the students' score lie within 2 standard deviation of the mean. Therefore, the top 2.5% corresponds to a z value of 2.
The limits are (2, infinity) --- top 2.5 %</span>
Answer:
50 cents
Step-by-step explanation:
half of 5.00$ is 2.50$
A number that can not be expressed as a fraction for integers
Answer:
This is a special type of data set in that it uses the same subjects to record the number of burps for both the root beer and cola, meaning the data is paired. I would perform a paired t-test to see if there is a difference between the mean number of burps for both types of cola. Your instructions only asked to test for a difference in the number of burps, so the direction of the alternative hypothesis is unknown, making it a two-tailed test. However, the problem stated that "As an avid soda drinker and statistics student, you notice you tend to burp more after drinking root beer than you do after drinking cola," and you could use this assumption to test that the mean number of burps while drinking root beer is more than that for cola, giving you a more precise answer versus doing a two-tailed test. Of course, you must designate which sample represents the first mean and which one represents the second mean. See below as an example:
µ1 = mean number of burps while drinking root beer.
µ2 = mean number of burps while drinking cola.
µD = mean of the differences in burping for root beer and cola.
µD = µ1 - µ2
Null hypothesis: there is no difference between the mean number of burps for root beer and cola.
H0: µD = 0
Alternative hypothesis: the mean number of burps while drinking root beer is more than than the mean number of burps while drinking cola.
HA: µD > 0 .
You can use any statistical software to help compute your test, but I recommend Statdisk, because it is free, requires no downloads, and very user-friendly. All you have to do is input your data in columns.
Step-by-step explanation:
