Answer: 32
Step-by-step explanation: 6 to the power of 2 is 36 plus 12 because 4 times 3 is 12 and minus 16
so 36+12-16= 32
Answer: fail to reject the seven-minute average waiting time claim.
Step-by-step explanation:
As per given ,
Objective for test : the average waiting time is seven minutes or more.
Then ,
Since alternative hypothesis is right-tailed thus the test is an right-tailed test.
In a right tailed test , the rejection area lies on the right side of the critical value.
It means that if the observed z-value is greater than the critical value then it will fall into the rejection region other wise not.
i.e. If the value of your test statistic is less than the critical value, the correct decision is we fail to reject null hypothesis.
i.e. fail to reject the seven-minute average waiting time claim.
The complete statement would become:
If the value of your test statistic is less than the critical value, the correct decision is to fail to reject the seven-minute average waiting time claim.
Answer:
Step-by-step explanation:
The situation is a case of matched or paired samples since the samples are dependent. The two measurements are drawn from the same pair of individuals The parameter that is tested using matched pairs is the population mean and this is what teacher intends to use a hypothesis test for.
The correct option is
A) She gives each student a pretest. Then she teaches a lesson using a computer program. Afterwards, she gives each student a post test. The teacher wants to see if the difference in scores will show an improvement.
When pouring in your bubble bath, add it slowly and right underneath the running water. The stronger the water pressure, the more bubbles you'll get. To increase the suds, rapidly run your fingers through the liquid underneath the tap and if need be, add more bubble bath before turning off the tap so c has to be the answer!
Answer:
15.60 times 100 divided by 390=4%
Step-by-step explanation:
