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pshichka [43]
2 years ago
9

Suppose that in a random sample of 240 smartphone users, 160 used an iPhone. Conduct a hypothesis test at significance level 0.0

2 to test the claim that more than 58% of smartphone users use an iPhone.
State the null hypothesis, the alternative hypothesis, the test statistic, the (P-value or traditional method), and formulate your conclusion.
Null hypothesis: ____________________ (1 points)
Alternative hypothesis: __________________ (1 points)
Test Statistic: (2 points)
p-value value: ________ (2 points)
Conclusion: __________________________________ (2 points)
Mathematics
1 answer:
My name is Ann [436]2 years ago
7 0

a 230 metersa 230 metersa 230 metersa 230 metersa 230 metersa 230 metersa 230 metersa 230 metersa 230 meters

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What is the solution of √x-5 = x-11
PIT_PIT [208]
Hey!


To solve x in this equation we must first add five to both sides to get \sqrt{x} on its own.

<em>Original Equation :</em>
\sqrt{x} - 5 = x - 11

<em>New Equation {Added 5 to Both Sides} :</em>
\sqrt{x} =x-6

Now we must square both sides of the equation.

<em>Old Equation :</em>
\sqrt{x} =x-6

<em>New Equation {Changed by Squaring Both Sides} :</em>
x= x^{2} -12x+36

And now we must solve the new equation.

Step 1 - Switch sides
x^{2} -12x+36=x

Step 2 - Subtract x from both sides
x^{2} -12x+36-x=x-x

Step 3 - Simplify
x^{2} -13x+36=0

Now we need to solve the rest of the equation using the quadratic formula.

\frac{-(-13)+ \sqrt{(-13) ^{2}-4*1*36 } }{2*1}

{13+ \sqrt{(-13)^{2}-4*1*36 }=13+ \sqrt{25}

\frac{13+ \sqrt{25}}{2}

\sqrt{25}=5

\frac{13+5}{2}

\frac{18}{2}

9

\frac{-(-13)- \sqrt{(-13) ^{2} -4*1*36} }{2*1}

4

<em>So, this means that in the equation \sqrt{x} -5=x-11,</em>  x = 9  <em>and  </em>x = 4.

Hope this helps!


- Lindsey Frazier ♥
4 0
2 years ago
Please help me, I have no idea what the equation for the new path is. <br><br> Thank you!!
Citrus2011 [14]
First, find the slope of the initial line; 

m=(y₁-y₂)/(x₁-x₂) 

m=(4-0)/(11-8) 
m=4/3 

If two lines are parallel, the slope is the same although the intercept can differ. 

If this parallel lines passes through the point (4, 5); 

y=(4/3)x+c <-- plug in coordinates to solve for c
5=(4/3)(4)+c 
(15/3)=16/3+c 
(15/3)-(16/3)=c 
-1/3=c 

Therefore, the final equation should be y=4/3x-1/3

Hope I Helped :) 
8 0
2 years ago
A number is chosen at random from the first 100 positive integers. Find the probability that the number is either even or a perf
Ber [7]
The answer is B. 11/20
3 0
3 years ago
Read 2 more answers
Classify Angle 5 &amp; Angle 6 by choosing the correct term from the choices below.
vampirchik [111]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

In the given figure, the angles 5 and 6 form Vertical opposite angle pair.

so, correct choice is Vertical

6 0
2 years ago
What are the partial products that result from multiplying 17*32?
murzikaleks [220]

Answer:

544

Step-by-step explanation:

4 0
3 years ago
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