Answer:
uhm im confuzed
Step-by-step explanation:
Answer:
a. Yes. This provides convincing evidence that the true proportion of all attendees who ate the fish that got sick (80%) is more than the true proportion of all attendees who did not eat the fish that got sick.
b. The mistake here would have been the rejection of the Doctor's theory or hypothesis to the effect that more attendees who ate the fish got sick than those who did not eat the fish. This is a Type 1 error. A Type 1 error occurs when a null hypothesis is rejected when it is true. On the other hand, a Type II error occurs when the null hypothesis is accepted when it should be rejected. While a Type I error is equivalent to a false positive, a Type II error is equivalent to a false negative.
Step-by-step explanation:
Total number of attendees who ordered fish = 1,000
Sample size of the attendees who ate fish = 80
Number of attendees who ate the fish and got sick = 64 (80% or 64/80)
Sample size of attendees who did not eat fish = 60
Number of attendees who did not eat fish and got sick = 39 (65% or 39/60)
Answer:
Solution set is (0,6).
Step-by-step explanation:
In this question we have to find out the solution set for the equation -2x² + 12x = 0
To get the solution set we will solve this equation to get the values of x.
-2x(x-6) = 0
⇒ x = 0 Or (x-6) = 0
When x - 6 = 0
We will add 6 on both the sides
x - 6 + 6 = 0 + 6
x = 6
Therefore the solutions of the equation are 0 or 6 which means a set of (0,6).
The 99% confidence interval for the population mean is 6± 2.443
<h3>Confidence interval</h3>
The formula for calculating the confidence interval is expressed as:
CI = x± z(s/√n)
GIven the following parameters
x = 6
s = 3
n = 10
z score at 99% = 2.576
Substitute into the formula to have:
CI = 6± 2.576(3/√10)
CI = 6± 2.443
Hence the 99% confidence interval for the population mean is 6± 2.443
Learn more on confidence interval here: brainly.com/question/15712887
Answer:
the answer is B
Step-by-step explanation: