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cestrela7 [59]
3 years ago
9

The average time it takes for a person to experience pain relief from aspirin is 25 minutes. A new ingredient is added to help s

peed up relief. You run an experiment to verify if the new product is better. You test out the new aspirin on 70 people. Those seventy people had a mean time of 24 minutes and 12 seconds with a standard deviation of 3 mins. Find the test statisic and p-value for your experiment.
Mathematics
1 answer:
liberstina [14]3 years ago
4 0

Answer:

-2.23 ; 0.012874

Step-by-step explanation:

Given that :

Population mean (μ) = 25 minutes

Same mean (x) = 24min 12 seconds = 24.2 minutes

Standard deviation σ = 3

Sample size (n) = 70

Test statistic :

Using the relation :

Tstatistic = (x - m) / σ/sqrt(n)

Tstatistic = (24.2 - 25) / (3/sqrt(70)

Tstatistic = - 0.8 / 0.3585685

Tstatistic = - 2.2310939

= - 2.23

The P value can be obtained using a. P value Calculator :

P at α = 95% and test statistic = - 2.23

Hence, p = 0.012874 using calculator

You might be interested in
Calcular el volumen en m3 de la esfera en el que el área de uno de sus círculos maximos es 36pim2
Strike441 [17]

Answer:

The volume of the sphere is V=288\pi\ m^3

Step-by-step explanation:

<u><em>The question in English is</em></u>

Calculate the volume in m^3 of the sphere in which the area of one of its maximum circles is 36pi m^2

we know that

The radius of the maximum circle in the sphere is equal to the radius of the sphere

Step 1

Find the radius of the maximum circle

The area of the circle is

A=\pi r^{2}

we have

A=36\pi\ m^2

substitute and solve for r

36\pi=\pi r^{2}

Simplify

36=r^{2}

take the square root both sides

r=6\ m

Step 2

Find the volume of the sphere

The volume of the sphere is

V=\frac{4}{3}\pi r^{3}

substitute the value of r

V=\frac{4}{3}\pi (6)^{3}

V=288\pi\ m^3

6 0
3 years ago
Edwin is shopping with his mom. He sees that oranges are on sale. A bag of 15 oranges costs $3. 75. Calculate the unit rate of e
grin007 [14]

Answer:

$0.25

Step-by-step explanation:

To find the unit rate of each orange, divide the total cost of the bag by the number of oranges in the bag:

⇒ 3.75 ÷ 15 = 0.25

Therefore, the unit rate of each orange is $0.25

4 0
2 years ago
. Shanice is making a garden. The area of the garden is 24 ft2. Use the following shape and information to find the base (6−4) a
crimeas [40]

Answer:

The base and height  of the garden are 4.60 ft and 5.60 ft.

Step-by-step explanation:

The area of the garden is, <em>A</em> = 24 ft².

The base height of the garden are:

base (<em>b</em>) = 6x - 4

height (<em>h</em>) = x + 3

Compute the value of <em>x</em> as follows:

A=\frac{1}{2}\times b \times h\\\\24=\frac{1}{2}\times (6x-4) \times (x+3)\\\\48=6x^{2}+18x-4x-12\\\\6x^{2}+14x-60=0\\\\3x^{2}+7x-30=0\\

The last equation is a quadratic equation.

Compute the roots of the quadratic equation as follows:

x = \frac{ -b \pm \sqrt{b^2 - 4ac}}{ 2a }\\x = \frac{ -14 \pm \sqrt{14^2 - 4(3)(-30)}}{ 2(3) }\\x = \frac{ -14 \pm \sqrt{556}}{ 6 }\\x = \frac{ -14 }{ 6 } \pm \frac{2\sqrt{139}\, }{ 6 }\\x = -\frac{ 7}{  3 } \pm \frac{ \sqrt{139}\, }{  3 }\\x = 1.59661\\x\approx 1.60

The value of base and height are:

\text{base}=6x-4=(6\times 1.60)-4=5.60\ \text{ft}\\\\\text{height}=x+3=1.60+3=4.60\ \text{ft}

Thus, the base and height  of the garden are 4.60 ft and 5.60 ft.

3 0
3 years ago
Please help asap! (the question is on the picture)
ArbitrLikvidat [17]

Answer:

the answer is 3

explanation:

3x+6/9= 3*7+6/9= 27/9 =3

6 0
3 years ago
Please help!!!!!!!!!!
horsena [70]
The correct answer is B
6 0
3 years ago
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