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
B. is the correct answer as it is the only point that falls within or on the linear equalities
Hope this is what you mean, sorry if it is not
Kelly can get 4 things of chicken salad and 2 things of egg salad it fits in the budget of $28 dollars. Hope you have a great day
Answer:
Range is 19.54
Step-by-step explanation:
I. If R = H - L
when R is Range, H is highest value and L is lowest value
R = 25.6 - 6.06
R = 19.54