Answer:
C.
Step-by-step explanation:
Hypothesis testing procedure:
Hypothesis:
The null hypothesis will be the variances of sales of two musical stores are equal and the alternative hypothesis will be the variances of sales of two musical stores are not equal
Level of significance: alpha=0.05
Test statistic: F=variance A/variance B=(30)^2/(20)^2=900/400=2.25
P-value: p=0.107
As the alternative hypothesis mentioned that the variances are not equal this leads to two tailed test. so the p-value is calculated using excel function 2*F.DIST.RT(2.25,24,15).
Conclusion:
The p-value seems to exceed the alpha=0.05 and this depicts that the null hypothesis should not be rejected.
Answer:
Answer in explanation
Step-by-step explanation:
When we talk of compression of gases, what we are talking about is simply the reduction in the volume of the gases. When we compress a volume of a gas, we are looking at reducing the volume of the gas in question.
Now, let’s work through this. The postulate that works in this scenario is that postulate about the interaction between the gas molecules whether attractive or repulsive are negligible. This is the driving force that dictates the compressibility of gases.
Gases are termed compressible because the the negligible force of attraction or repulsion between them confers a kind of fluidity to these gases. It is this fluidity that makes it possible for gases to be compressible.
If it was that the attractive or repulsive forces are not negligible, they would have posed a difficulty that would be dependent on the strength of the compressive forces to overcome
Answer:
there is 2 cakes for each pie.
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
3 periods....20 minutes each.....3 * 20 = 60 total minutes playing time
colin plays 12 minutes each period...12 * 3 = 36 minutes
Collins playing time to total playing time = 36/60 reduces to 9/15 or 9:15 or 9 to 15 <===
