Answer:

Step-by-step explanation:

Answer:
55/9
Step-by-step explanation:

We need to make the denominators the same:

Now simply add the numerators:

Simplify by reducing:

Solution as a mixed number: 
Answer:
A. Reject the null hypothesis because p-value < 0.005 is less than the significance level a = 0.05
Step-by-step explanation:
In hypothesis test, test statistic calculated and it's p-value is compared against the significance level. If it is less than the significance level, the result is significant at the given significance level. In this case one can reject the null hypothesis in favor of the alternate hypothesis.
In this example Katherine find test statistic -3.39, and p-value < 0.005. Thus she can conclude there is significant evidence that the population mean peak power is less than the advertised amount
Answer:
$2.67
Step-by-step explanation:
You would do 8/3 which is 2.666666667 which when rounded to the nearest hundredth is 2.67
Hope this helps!
Answer:
A) 5
Step-by-step explanation:
(7 + 1)( 7+ 2) 7 + 1