A medical school claims that more than 28% of its students plan to go into general practice. To test this claim, a random sample of 130 of the school's students is selected. Of these, 32% of them plan to go into general practice. Find the P-value for this test of the school's claim.
Answers
Answer:
The p-value of the test is 0.1314.
Step-by-step explanation:
In this case we need to test the claim made by a medical school that more than 28% of its students plan to go into general practice.
The hypothesis can be defined as follows:
H₀: The proportion of students planning to go to general practice is 28%, i.e. p = 0.28.
Hₐ: The proportion of students planning to go to general practice is more than 28%, i.e. p > 0.28.
The information provided is:
n = 130
[tex]\hat p=0.32[/tex]
Compute the test statistic value as follows:
[tex]z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]
[tex]=\frac{0.32-0.28}{\sqrt{\frac{0.28(1-0.28)}{130}}}\\\\=1.12[/tex]
The test statistic value is 1.12.
Compute the p-value as follows:
[tex]p-value=P(Z>1.12)\\[/tex]
[tex]=1-P(Z<1.12)\\\\=1-0.86864\\\\=0.13136\\\\\approx 0.1314[/tex]
The p-value of the test is 0.1314.
*Use the z-table.
Related Questions
Find the absolute value
| -5.2 |
Answers
Answer:
5.2 is the answer because i know
Step-by-step explanation:
make me brainiest
-7g+3g²-31-4g-9g²
Combine like terms to simplify
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Answer:
6g^2−11g−31
Step-by-step explanation:
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What is 6/15 written as a decimal?
A. 0.4
B. 0.6
C. 2.0
D. 2.5
Answers
Answer:
the answer is A "0.4"
Step-by-step explanation:
Answer:
0.4
Step-by-step explanation:
just divide 6 by 15 and then it will give u the answer.
Sal's Pizza uses 720 pounds of flour i 4 weeks. Sal's is open 6 days a week and uses the same amount of flour each day. How much flower does Sal's Pizza use in 1 day?
Answers
Answer:
sal's pizza uses 30 pounds of flour in 1day
Step-by-step explanation:
Answer:
LET THE PIZZA BURN LIKE I DID
Step-by-step explanation:
Enter the number of complex zeros for the polynomial function in the box.
f(x)=x4+5x2+6
Answers
Answer:
4Step-by-step explanation:
Given function
f(x)=x⁴+5x²+6Zeros of the function:
x⁴+5x²+6 = 0(x²)² + 2x² + 3x² + 6= 0(x² + 2)(x² + 3) = 01. x²+ 2 = 0
x²= -2x₁,₂ = ±√2i2. x² + 3 = 0
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Answer:
4
Step-by-step explanation:
Help!!
Question 1 Multiple Choice Worth 4 points)
(02.05)
Solve the quadratic equation x? - 8x + 18 = 0 using the quadratic formula. What is the solution when expressed in the form a + bi, where a and b are real numbers?
Answers
Answer:
do u go to il Texas and BTW u look nice
-8x=0-18
-8x/8=-18/8
X= -18/8=-9/4
28-29 plz and thank you I really don’t knoe
Answers
Answer:
28 false 29 yes
Step-by-step explanation:
cuz im different
I need help again . ASAP I don’t this lesson at all
Answers
Answer:
c = 33°, b = 147°
Step-by-step explanation:
You can just find that c + 147° makes a straight line (which is 180°) so c = 180° - 147°. You can do the same thing for b.
evalute: 7.48 + (-8.245)
Answers
Answer:
7.48−8.245
=7.48+−8.245
=−0.765
Answer:
-0.765
Step-by-step explanation:
Simplify: 7.48 + (-8.245) = 7.48 - 8.2457.48 - 8.245 = -0.765I hope this helps!
As a restaurant manager, you are tracking the number of ketchup bottles used each week in the restaurant. For six
weeks, the number of bottles used each week were 10, 14, 11, 10, 18, and 17.
What is the mean number of ketchup bottles used in one week?
A. 8
B. 10 C. 35/3
D. 40/3
E. 14
Answers
Answer:
The mean is 40/3 ⇒ D
Step-by-step explanation:
The mean of a set of data = The sum of data ÷ the number of data
∵ A restaurant manager tracking the number of ketchup bottles in
six weeks
∴ The number of data = 6
∵ The numbers of ketchup bottles used each week are 10, 14, 11, 10, 18, 17
→ Find their sum
∴ Their sum = 10 + 14 + 11 + 10 + 18 + 17
∴ Their sum = 80
∵ The mean = The sum of data ÷ the number of data
∴ The mean = 80 ÷ 6
→ Simplify it by dividing both by 2
∴ The mean = 40/3
Help please answer correctly
Answers
NEED HELP WITH MATH! Will Give brainliest!
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Answer:
3
Step-by-step explanation:
-1, 1, 2
PLEASE HELP QUICK!!!!What is the greatest common factor of 40, 10, and 20?
Answers
Answer:
40? it could go on for infinite mate
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
10 goes into 40 and 20 as the greatest common factor.
Hope this helps and pls do mark me brainliest if you can:)
You want to purchase a new car in 3 years and you anticipate the cost of the car to be $25,000. You are given an investment plan with a fixed APR of 5.3% if you make regular monthly deposits.
How much should you deposit at the end of each month to reach your goal of $25,000 in 3 years?
a.$642.23
c.$648.62
b.$645.65
d.$649.13
Answers
Answer:
The answer is A: $642.23
Step-by-step explanation:
I just took the test lol
Solve 18x+ 6>12x +18
Answers
6x+6>18
6x>12
x>2
Put these fractions in order of size, smallest to largest 2/3, 3/5, 7/10
Answers
Answer:
2/3, 3/5, 7/10
Step-by-step explanation:
hope that helped
Item 16 Joanne paid $ 28 , 000 for her new car. In addition, she paid $ 1 , 400 in taxes. What was the tax rate Joanne paid on her new car?
Answers
Answer: 20%
Step-by-step explanation:
By Tuesday, Connie fed her cat 12 ounces of cat food. Based upon her ratio, how much dog food would Connie have fed her dog? Explain how you found your answer using both the table and the graph.
Answers
3x^2+ 5x − 2 = 0 solve
SHOW ALL WORK AND STEPS FOR BRAINLIEST
Answers
9514 1404 393
Answer:
x = -2 and x = 1/3
Step-by-step explanation:
The simple way to solve this is to enter the equation into a graphing calculator and have it show you what the zeros are.
The solutions are x = -2 and x = 1/3.
__
One way to solve this is to factor it. The product of the leading coefficient and the constant is (3)(-2) = -6. You want to find factors of this number that have a sum equal to the coefficient of the linear term: 5.
-6 = (-1)(6) = (-2)(3) = ...
The first pair of factors listed here has a sum of 5, so we can rewrite the equation as ...
3x^2 -x +6x -2 = 0
Factoring pairs of terms, we have ...
x(3x -1) +2(3x -1) = 0
(x +2)(3x -1) = 0
The solutions are the values of x that make these factors zero:
x + 2 = 0 ⇒ x = -2
3x -1 = 0 ⇒ x = 1/3
The solutions are x = -2 and x = 1/3.
Which equation has no solution?
-(85 + 6) – 23 = -3(25 + 1)
O -4(35 + 2) = -23 – 8 + 45
o 745 + 2) – 31 = (63 + 3)
0-25 +5 – 35 + 12 = -5(1 - 3) + 2
Answers
Answer:
Third choice 7(x + 2) - 3x = 2/3(6x + 3)
Step-by-step explanation:
Choice answer 1 has infinitely many solutions since -1/2(8x + 6) - 2x = -3(2x + 1) → -6x - 3 = -6x - 3 = 0 → 0 = 0 [is always equal to].
Choice answer 2 has one solution since
-1/2(8x + 6) - 2x = -3(2x + 1) → -2x - 8 = 2x - 8 → x = 0 [is equal to in 1 condition].
Choice answer 3 has no solution since
7(x + 2) - 3x = 2/3(6x + 3) → 4x + 14 = 4x + 2 → 0 = -12 [is never equal to].
Choice answer 4 has infinitely many solutions since -2x + 5 - 3x + 12 = -5(x - 3) + 2 → -5x + 17 = -5x + 17 → 0 = 0 [is always equal to].
Kyle sells 20 boxes of fruit for a fundraiser.Omar sells 2 times as many boxes of fruit as Kyle sells.what is the total number of boxes that Kyle and Omar sell?
Answers
Answer:
60 boxes
Step-by-step explanation:
Kyle + (Kyle x 2)
20 + (20 x 2)
20 + 40
60
help me please is of maths
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Answer:
you're right
Step-by-step explanation:
it's telling me to add more characters so thus is what you get
given t(m)=7-9m, find t(m)=-2
Answers
Answer:
m=1
Step-by-step explanation:
-2=7-9m so -9=-9m so m=1
A decision maker is interested in estimating the mean of a population based on a random sample. She wants the confidence level to be % and the margin of error to be . She does not know what the population standard deviation is, so she has selected the pilot sample below. Based on this pilot sample, how many more items must be sampled so that the decision maker can make the desired confidence interval estimate? The decision maker should sample nothing more items to make the desired confidence interval estimate.
Answers
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is [tex]n = 146093[/tex]
Step-by-step explanation:
From the question we are told that
The margin of error is [tex]E = 0.04[/tex]
The data is
8.70 4.79 10.95 15.19 14.06
16.99 1.22 9.02 14.39 5.73
7.28 3.22 2.66 6.13 6.93
Generally the sample mean is mathematically represented as
[tex]\= x = \frac{\sum x_i}{n}[/tex]
=> [tex]\= x = \frac{ 8.70 + 4.79 +\cdots + 6.93}{15}[/tex]
=> [tex]\= x = 8.48[/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{ \frac{ \sum (x_i - \= x)}{n} }[/tex]
=> [tex]\sigma = \sqrt{ \frac{ (8.70 - 8.48 )^2 + ( 8.70 - 8.48)^2 + \cdots + (6.93 - 8.48)^2 }{15} }[/tex]
=> [tex]\sigma = 5.14[/tex]
From the question we are told the confidence level is 98% , hence the level of significance is
[tex]\alpha = (100 - 98 ) \%[/tex]
=> [tex]\alpha = 0.02[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = n -1[/tex]
=> [tex]df = 15 -1[/tex]
=> [tex]df = 14[/tex]
Generally from the t distribution table the critical value of at a degree of freedom of is
[tex]t_{\frac{\alpha }{2} , 14 } = 2.9768 [/tex]
Generally the sample size is mathematically represented as
[tex]n =[ \frac{t_{\frac{\alpha }{2} , 14 } * \sigma }{E} ]^2[/tex]
=> [tex]n =[ \frac{ 2.9768 * 5.136 }{0.04} ]^2[/tex]
=> [tex]n = 146093[/tex]
Question 2 (10 points) What is the y-intercept of this graph? $100 0 $200 $50
Answers
Answer:
100 A
Step-by-step explanation:
Select the correct answer from the drop-down menu. Triangle ABC is similar to Triangle DEF. The perimeter of Triangle ABC is five times the perimeter of Triangle DEF. The area of. Triangle ABC is 100 square centimeters. The area of DEF is how many square centimeters.
Answers
Answer:
20
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation:
Identify the slope and y-intercept of the following equation.
Answers
i don’t know how to figure this out please help me
Answers
Answer:
Reverse
Step-by-step explanation:
Do the whole thing backwards in sentence
Start with y
Multiply by 7
Add 14
Take the square root
You end the number y.
What is the interest is the principal is $10,000 the interest rate is 2% and the time is eight years
Answers
Answer:
the answer is 160
Step-by-step explanation:
take the interest percentage and divide by 100 ex:5.2%100=0.052
take the dollar amount and multiply interest decimal
ex:$450*0.052=23.40
take the sum of dollar amount and interest decimal and multiply by # of years of interest
ex:3 years *23.40=70.20
and that is how i got that answer
6. What is the area of a square with a side length of 7 + 2i ?
A. 25 + 28i
B. 45 + 28i
C. 45 - 14
D. 49 + 281
Answers
Answer:
B
Step-by-step explanation:
That’s your answer hope this helps
