7/8+3/8=10/8
10/8=5/4
The answer as an improper fraction is 5/4 and 1 and 1/4 as a mixed fraction.
Hope I didn't mess up for your sake.
Answer:
350
Step-by-step explanation:
Use PEMDAS.
300+45-18+22-1+2
345-18+22-1+2
327+22-1+2
349-1+2
348+2
350
The answer is B, but C is a pretty good answer too.LOL.
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:
Energy consumed = 1.73× 10⁵ J
Step-by-step explanation:
Given:
Power P = 48.1 W, Time = 1 Hrs= 3600 S
Formula of Power = Energy / Time
⇒ Energy = Power × Time
Energy = 48.1 W × 3600 S = 173,160 Joule = 1.73× 10⁵ J
