The change in altitude would be 1200ft.
Imagine ft per minute as m.
That would be 300m.
In this problem, it asks what the change in altitude would be after 4 minutes. That would be m = 4.
So if m = 4, that would be 300•4, which is 1200.
The difference of the two temperature is 20.
This is because the absolute value of -4 is 4
The absolute value of 16 is 16
16+4= 20
~JZ
It is <span>the commutative property of addition:
a + b = b + a
</span>
1 ,3 and 4 are correct :)
Answer:
Step-by-step explanation:
Given that the difference of sample means of two populations is 108.7, and the standard deviation of the difference in sample means is 32.
H0: difference inmeans =0
Ha: difference inmeans not equal to 0
(Two tailed test)
Test statistic = mean difference/std deviation
For 68% confidence level, }z}<1
Here z =3.40 >1
Hence reject null hypothesis
The difference between the means cannot be 0 and there is statistical evidence at 68% level to reject null hypothesis