Answer:
0.288 < p < 0.338
Step-by-step explanation:
We have 2331 adults polled and 730 said they believe in UFOs. We are to construct a 99% confidence interval for the population proportion. We are told to round to 3 decimal places as needed.
We need to find p-hat and q-hat
p-hat = 730/2331 = 0.313
q-hat = 1 - p-hat = 1 - 0.313 = 0.687
Since the sample size is greater than 30, we use a z-value for 99% confidence, which is 2.575
See attached photo for the construction of the confidence interval
Answer:
b
Step-by-step explanation:
because
Answer: See explanation
Step-by-step explanation:
Your question isn't complete but let me help out. The value of each shirt will be gotten by subtracting $47.15 from the total amount paid for the shirt and jacket. Let's say the total amount paid is $90.02
Since the jacket cost $47.15, the cost of the shirts will be:
= $90.02 - $47.15
= $42.87
We would now divide the coat if the three shirts by 3. This will be:
= $42.87 ÷ 3
= $14.29