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Olenka [21]
2 years ago
14

-. A medical test has been designed to detect the presence of a certain disease. Among those who have the disease, the probabili

ty that the disease will be detected by the test is 0.95. However, the probability that the test will erroneously indicate the presence of the disease in those who do not actually have it is 0.04. It is estimated that 4% of the population who take this test have the disease .If the test administered to an individual is positive, what is the probability that the person actually has the disease? Suppose 20% of the people who were referred to a clinic for the test did in fact have the disease. If the test administered to an individual from this group is positive, what is the probability that the person actually has the disease?​
Mathematics
1 answer:
Kobotan [32]2 years ago
4 0

Answer:

TV focusing urgency hangs amateur ushers sex tendency yachting

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Previous studies on sleep tendencies report that, on average, an adult American will sleep for 6 hours each night with a standar
Rasek [7]

Answer:

b) One sample z-test for means

Step-by-step explanation:

Normal Distribution

we have μ₀ (population mean from previous studies)

sample size    n  =  100

standar deviation of population   σ  = 0.75

And it was determined from sample, that μ = 5 : so we want to know if, at some significance level that value (which is smaller than population mean ) could help in relation to decide about rejecting hypothesis  H₀

We should use a z one tail-test for means (left tail)

4 0
2 years ago
Given f(x)=4/5x + 13, find the inverse f-¹(x)<br>Given f(x)= 3/x+10 + 4 find the inverse f-¹(x)​
Elodia [21]
  • f-¹(x) = 69/5y
  • f-¹(x) = 13 + 4y/(y + 10)

<h3>How to determine the inverse </h3>

The steps involved in determining the inverse of a function are;

  • Replace f(x) with y in the equation describing the function
  • Interchange x and y
  • Solve for y
  • Replace y by f-1(x)

If f(x) = 4/5x + 13

y = 4/5y + 13

y = 4 + 65 /5y

f^-1 = 4 + 65 /5y

f^-1(x)= 69/5y

If f(x)= 3/x+10 + 4

y = 3/y + 10 + 4

y = 3 + 4y + 10/(y + 10)

y = 13 + 4y/(y + 10)

f^-1(x) = 13 + 4y/(y + 10)

Thus, the inverse of the functions is 69/5y and 13 + 4y/(y + 10)

Learn more about functions here:

brainly.com/question/6561461

#SPJ1

5 0
1 year ago
What value for x makes the equation true?
fgiga [73]

Since we already have 3^7 you should know that 3 times 3 is 9. Here is how I would simplify it.

3^7 times 3^4 times 3^3

You should add all the exponents and get

3^14

27 is basically 3 times 3 times 3 which is why I chose to put 27 that way

8 0
3 years ago
F '(x) = sin(x) - 65<br> What is f(x)?
irakobra [83]

Hello,

f'(x) = sin(x) - 65 → f(x) = -cos(x) - 65x

6 0
1 year ago
A group of 25 people are going to run a race. The top 8 finishers advance to the finals. Determine the number of possible outcom
satela [25.4K]

Answer:

n[total]=25

n[top finishers]=8

the number of possible outcome

=\frac{25 \times 24 \times 23 \times 22 \times 21 \times 20 \times 19 \times 18}{8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}  = 1081575outcomes

6 0
3 years ago
Read 2 more answers
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