If we plug in: x = 3, y= - 4;
- 4 + 4 = - 5 · ( 3 - 3 )
0 = 0 ( correct )
Answer: C ) ( 3, - 4 )
Answer:
miles
Step-by-step explanation:
Let's convert 8 and 2/3 to an improper fraction
8 2/3 = 26/3
Lets convert 3 hours and 6 minutes over a fraction of 60 minutes
3 hours 6 minutes = 186 minutes/60 minutes = 186/60
Multiply both improper fractions:
-Chetan K
Answer:
Correct option:
"z requires that you know the population standard deviation σ which may be unrealistic."
Step-by-step explanation:
The hypothesis test for significant population mean <em>μ</em> can be done either using the <em>z</em>-distribution of <em>t</em>-distribution.
Both the distribution require certain conditions to be fulfilled to use.
For using a <em>z</em>-distribution to perform a hypothesis test for <em>μ</em> the conditions to fulfilled are:
- Population is Normally distributed.
- The population standard deviation is known.
- The sample selected is large.
For using a <em>t</em>-distribution to perform a hypothesis test for <em>μ</em> the conditions to fulfilled are:
- Population is Normally distributed.
- The sample selected is randomly selected.
If the population standard deviation is not known and we have to compute the sample standard deviation then use the <em>t</em>-distribution to perform the test for population mean.
Thus, the correct option is:
"z requires that you know the population standard deviation σ which may be unrealistic."
Answer: B (It does not make sense for time to be negative.) & C (The ball cannot hit the ground before it is thrown.)
Step-by-step explanation:
I answered the question already
