1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FinnZ [79.3K]
3 years ago
10

A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sam

ple of 130 of the school's students, 32% of them plan to go into general practice. Find the P-value for a test of the school's claim.
a. 0.1635
b. 0.3461
c. 0.1539
d. 0.3078
Mathematics
2 answers:
elixir [45]3 years ago
8 0

Answer:

Answer is C. 0.1539

Refer below.

Step-by-step explanation:

A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sample of 130 of the school's students, 32% of them plan to go into general practice. The P-value for a test of the school's claim is:

0.1539

dusya [7]3 years ago
3 0

Answer:

C

Step-by-step explanation:

Solution:-

- A medical school claim was made on the population proportion that more than P = 0.28 (28%) of its student plan to go into general practise.

- A sample of n = 130 students were taken and the sample proportion was found out to be p = 0.32 ( 32% ).

- We will first estimate the sample standard deviation (σ) by assuming that the population is normally distributed with conditions :

                       n*P = 130*0.28 = 36.4 ≥ 10

                       n*( 1 - P ) = 130*0.72 = 93.6 ≥ 10

- The condition of normality are valid. The population is assumed to be normally distributed. The sample must also be normally distributed. The sample standard deviation (σ):

                        σ =  √[ P*(1-P) /n ]   = √[ 0.28*(1-0.28) /130 ]        

                        σ = √0.00155 = 0.03937          

- The Z-score test statistic for the sample proportion p can be determined by:

                       Z-test = ( p - P ) / σ

                       Z-test = ( 0.32 - 0.28 ) / 0.0397

                       Z-test = 1.00755

- The p-value of the Z-test is the probability of values where Z value is greater than the Z-test:

                   p-value = P ( Z > Z-test )

                   p-value = P ( Z > 1.00755 ) = 1 - 0.843

                                                                = 0.157

- The p -value is = 0.157 ≈ 0.1539

You might be interested in
A bottle holds exactly 2/3 pint of liquid. How many 2/3-pint bottles can be filled from a 24-pint container
kifflom [539]

Answer:

36 number of 2/3-pint bottles can be filled from a 24-pint container

Step-by-step explanation:

Volume of the container is 24 pint

Volume of the bottle is 2/3 pint

Number of 2/3 pint bottles that can be filled from 24 pint container is

\frac{24}{\frac{2}{3} } \\= 24 * \frac{3}{2} \\= 12 * 3\\= 36

36 number of 2/3-pint bottles can be filled from a 24-pint container

6 0
2 years ago
If a bill cost $125. And they leave a $21.25 for a tip what percentage did they tip
yanalaym [24]

Answer:

17%

Step-by-step explanation:

Divide $21.25 by $125

6 0
3 years ago
Here is a square and some regular octagons.
Digiron [165]

Answer:135 degrees

Step-by-step explanation: Because a octagon equals 1080 and since there are eight sides you divide it by 8 and get 135

4 0
3 years ago
What is 184.24 to 4 significant figures
siniylev [52]
184.2 is the answer to 4 significant figure
4 0
2 years ago
The object on the right is made from a square-based pyramid joined to a cuboid.
spayn [35]

Answer:

Density of steel = 80.73 gm/cm^3

Step-by-step explanation:

The figure is made up of cuboid and square pyramid.

Height of cuboid, h = 9 cm

Length of cuboid, l = 6 cm

Width of cuboid, w = 6 cm

Volume of cuboid is given by the formula:

V_{Cuboid} = l \times w \times h

V_{Cuboid} = 6 \times 6 \times 9\\\Rightarrow V_{Cuboid} = 324\ cm^3

Density of Wood , D_{Cuboid}= 0.68g/cm^3

We know that formula of Density is:

Density = \dfrac{Weight}{Volume}

D_{Cuboid} = \dfrac{W_{Cuboid}}{V_{Cuboid}}\\\Rightarrow W_{Cuboid} = V_{Cuboid} \times D_{Cuboid}

Putting the values:

W_{Cuboid} = 324 \times 0.68 = 220.32\ gm

Total weight = W_{Cuboid} + W_{Pyramid}

970 = 220.32 + W_{Pyramid}

W_{Pyramid} = 749.68 gm

Volume of pyramid is given as:

V_{Pyramid}= \dfrac{1}{3} \times \text{Area of Base} \times \text{Vertical Height}

Base is a square with side 6 cm

V_{Pyramid}= \dfrac{1}{3} \times 6 \times 6 \times (17 -9)\\V_{Pyramid}= 96\ cm^3

Density of Steel/Pyramid:

D_{Pyramid} = \dfrac{W_{Pyramid}}{V_{Pyramid}}\\\Rightarrow D_{Pyramid} = \dfrac{749.68}{96}\\\Rightarrow D_{Pyramid} = 80.73\ gm/cm^3

5 0
3 years ago
Other questions:
  • What is the exact area of a circle having the diameter of 6in A:9 pie B: 36pie C: 6 pi D: 3pie
    11·1 answer
  • Given JAM an segment PB such that PB || JM what is the missing justification in the proof that JP/PA=MB/BA
    14·2 answers
  • Help with 4 pls thx
    12·2 answers
  • From least to greatest...can someone help me figure this out?? <br> 3 9/13, 3 4/15, 3 1/7
    14·2 answers
  • Please help! Very Easy Question! Which of the following are rational numbers?
    5·1 answer
  • Solve<br> Find mZKJI if mZGJI = 160°<br> and mZKJG =20
    5·1 answer
  • 13. This shows a part of a multiplication table. Find the
    13·1 answer
  • Find the slope of the line that passes through the points. (1,2) and (-2,2)
    12·2 answers
  • Find the volume of the cone.
    10·2 answers
  • Combine the cube of k and 27
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!