Answer:
98% is almost 100%, so we can see that the number of problems on the test can only be 1 or 2 more than 86.
The number of problems on the test is 87
Step-by-step explanation:
There are four terms and it is sum !
so the answer is C !!
Using the z-distribution, it is found that the 90% confidence interval for the proportion of Americans who believe that the minimum wage should be raised is (0.4689, 0.5311).
<h3>Confidence interval of a proportion</h3>
- In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following <em>confidence interval of proportions.</em>
- In which z is the z-score that has a p-value of .
In this problem:
- 350 out of 700 in the sample said yes, hence .
- 90% confidence level, hence, z is the value of Z that has a p-value of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 90% confidence interval for the proportion of Americans who believe that the minimum wage should be raised is (0.4689, 0.5311).
To learn more about the z-distribution, you can take a look at brainly.com/question/26130512
Step-by-step explanation:
slope of line r= (13-4)÷(2-10)
=9/-8
slope of line s = 8/9
Answer:
The final balance is $7,913 and the total compound interest is $413.27
To calculate compound intrest, you need to multiply the initial principal amount ($7500) by one , plus the annual intrest rate (2.7%) raised to the number of compound periods minus one. The total initial amount of the loan is the subtracted from the resulting value.