In a study of 788 randomly selected medical malpractice lawsuits, it was found that 494 of them were dropped or dismissed. Use a 0.05 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed.Which of the following is the hypothesis test to be conducted?
A.
Upper H 0 : p less than 0.5
Upper H 1 : p equals 0.5
B.
Upper H 0 : p greater than 0.5
Upper H 1 : p equals 0.5
C.
Upper H 0 : p equals 0.5
Upper H 1 : p not equals 0.5
D.
Upper H 0 : p equals 0.5
Upper H 1 : p less than 0.5
E.
Upper H 0 : p not equals 0.5
Upper H 1 : p equals 0.5
F.
Upper H 0 : p equals 0.5
Upper H 1 : p greater than 0.5
What is the test statistic?
Z =
(Round to two decimal places as needed.)
What is the conclusion about the null hypothesis?
A. Reject the null hypothesis because the P-value is greater than the significance level, alpha.
B. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, alpha.
C. Fail to reject the null hypothesis because the P-value is greater than the significance level, alpha.
D. Reject the null hypothesis because the P-value is less than or equal to the significance level, alpha.
What is the final conclusion?
A.There is sufficient evidence to support the claim that most medical malpractice lawsuits are dropped or dismissed.
B.There is not sufficient evidence to support the claim that most medical malpractice lawsuits are dropped or dismissed.
C.There is sufficient evidence to warrant rejection of the claim that most medical malpractice lawsuits are dropped or dismissed.
D.There is not sufficient evidence to warrant rejection of the claim that most medical malpractice lawsuits are dropped or dismissed.
Answers
Answer:
Step-by-step explanation:
A. Upper H 0 : p equals 0.5
Upper H 1 : p not equals 0.5
B. Using the tests promotion formula, we have (p - P) / √P(1-P)
Where p (sample promotion) = 494/788 = 0.6269, P (population proportion) = 0.5,
(0.6269 - 0.5) / (√0.5(1-0.5))
0.1269/ √(0.5 (0.5))
0.1269/ √0.25
0.1269/0.5
Test statistics is equal to 0.2538
C. We will use the p value to determine our result, thus the p value at 0.05 level of significance is 0.79965, thus we fail to reject the null hypothesis because the P-value is greater than the significance level, alpha.
Then we conclude that There is not sufficient evidence to support the claim that most medical malpractice lawsuits are dropped or dismissed.
Related Questions
A cylindrical package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 141 inches. Find the dimensions of the package of maximum volume that can be sent. (The cross section is circular.)
A student sales neckslaces to earn eztra money. She charged $10 per necklace for material and $2.75 per hour to make unique gifts. How much would two necklace cost together if one takes her an hour to make and the other three hoursto make?
Solve equation 3(c - 2)=15What are two ways to start solving this equation? Choose BOTH ways
The number of text messages sent by 25 13-year-olds over the past month are as follows791 542 671 672 555 582 616 961 639691 648 967 959 826 573 598 790 954711 515 649 960 949 802 507 a. Construct the frequency distribution using classes of 500 up to 600, 600 up to 700, etc.Texts Frequency500 up to 600 600 up to 700 700 up to 800 800 up to 900 900 up to 1000 Totalb. Construct the relative frequency distribution, the cumulative frequency distribution and the cumulative relative frequency distribution. (Round "Relative Frequency" and "Cumulative Relative Frequency" to 2 decimal places.)Texts Relative Frequency Cumulative Frequency Cumulative Relative Frequency500 up to 600 600 up to 700 700 up to 800 800 up to 900 900 up to 1000c-1. How many of the 13-year-olds sent at least 600 but less than 700 text messages?c-1. Number of 13-year-oldsNumber of 13-year-oldsc-2. How many sent less than 900 text messages?Number of 13-year-oldsd-1. What percent of the 13-year-olds sent at least 800 but less than 900 text messages? (Round your answer to the nearest whole percent.)Percent of 13-year-olds %d-5. What percent of the 13-year-olds sent less than 600 text messages? (Round your answer to the nearest whole percent.)Percent of 13-year-olds %
Answers
Answer:
1,000,000
Step-by-step explanation:
1mm=1e-6km
10mm=1e-5km
100mm=1e-4km
1000mm=000.1km
10000mm=0.01km
100000mm=0.1km
500000mm=0.5km
1000000mm=1km
o 44
O 4y
o 8
o gy
Answers
Answer:
B is the answer of the question
Answer:
The answer is 4y8
Step-by-step explanation:
HURRY
Answers
Answer:
135
Step-by-step explanation:
Answer:
135
Step-by-step explanation:
(1+2+3+4+5)= 15
(1*2*3*4*5)= 120
15+120=135
Answers
Answer:
x = - 2 is confirmed to be the real solution of the equation.
Step-by-step explanation:
We are tasked with the following activities
Conjecture: How many solutions do have?
Find the real solution(s) of the equation.
Then use polynomial long division to find the other solution(s).
To start with the how many solutions that have
suppose that -2 happens to be a root of the equation, we can easily replace x = - 2 in the given equation. Then , we will have :
-8 - 20 + 28 = 0
-28 - 28 = 0
0 = 0
The equation resulted to 0 = 0 when x = -2 , as such -2 happens to be one root of the equation
So , as x = - 2
x + 2 = 0
x = - 2 is confirmed to be the real solution of the equation.
A picture showing the polynomial long division method used for solving the polynomial equation and other solution(s) can be found in the attached file below.
Answers
Answer:
3.189 seconds
Step-by-step explanation:
You want f(t) = 0, so ...
0 = -16t^2 +13.4t +120
0 = t^2 -0.8375t -7.5 . . . . divide by -16
0 = (t^2 -0.8375t +0.41875^2) -7.5 -0.41875^2 . . . . complete the square*
0 = (t -0.41875)^2 -7.6753515625 . . . . write as a square
√7.6753515625 = t -0.41875 . . . . . . . . add 7.67... and take positive root
t = 0.41875 +√7.6753515625 ≈ 3.189192 . . . . add 0.41875
It will take the rock about 3.189 seconds to hit the ground.
_____
* We complete the square by adding the square of half the coefficient of the linear term (= (-0.8375/2)^2) inside parentheses and subtracting the same amount outside parentheses. This gives a form inside parentheses that is ...
(t^2 -2at +a^2) = (t -a)^2
Completing the square is complicated a little bit by a leading coefficient that is not 1. That is why we divided by -16 first.
_____
Comment on the question
We note that the rock "falls" from the 120 foot high balcony by first traveling upward at a rate of 13.4 feet per second. We also note that the height function is written f(x), but uses t as the variable. That is, it should be f(t) = ...
−
5
y
=
14
Find
x
when
y
=
2
Answers
Answer:
4
Step-by-step explanation: