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pshichka [43]
3 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]3 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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Write a system of equations to describe the situation below, solve using elimination, and fill in
Andrej [43]

Answer:  Child is $1 and Adult is $3, per person.

Step-by-step explanation:

We have two unknowns, so we need at least two equations.  Let C and A stand for the price of a ticket for a child and an adult, respectively.

The income for Monday and Tuesday can be calculated:

Monday:   16C + 42A = $142

Tuesday:  24C + 26A = $102

Rearrange the second equation to isolate one of the variables.  I'll pick C:

24C + 26A = $102

C  = ($102 - 26A)/24

Now use this expression for C in the first equation

16C + 42A = $142

16(($102 - 26A)/24) + 42A = $142

16(($102 - 26A)/24) + 42A = $142

(1632 - 416A)/24 + 42A = $142

(68 - 17.3333A + 42A = $142

24.6667A = 74

A = 3  [The price of an adult pool admission is $3]

Use this value in either equation to find the price of a child's admission:

24C + 26A = $102

24C + 26*($3) = $102

24C = 102 - 78

C = $1   [The price of a child's admission to the pool is $1]

Check to see if these prices satisfy both equations:

Monday:   16C + 42A = $142

Tuesday:  24C + 26A = $102

---

Monday:   16*(1) + 42*(3)  = $142   ?   YES

Tuesday:  24*(1) + 26*(3) = $102   ?    YES

<u>Child is $1 and Adult is $3, per person.</u>

6 0
2 years ago
He fills the pencil holder with sand before he wraps it to make it feel like a heavy, expensive gift. How much sand will he need
torisob [31]

Answer:

Answer choice d

Step-by-step explanation:

To find the volume of this triangular prism, you first need to find the area of the triangular base. The formula for the area of a triangle is bh/2, which in this case is 3*2/2=3 square units. Multiplying this by the height of the prism, 3.5, you get a total of 10.5 cubic inches, or answer choice d. Hope this helps!

5 0
3 years ago
If a×b×c=0 and a and b are integers greater than 10,what must c equal
alekssr [168]


a*b*c=0


and a nd b are > 10 so


c must be 0


7 0
3 years ago
HELP PLEASE!!!!!!!! ASAP!!!!!!!!
Serjik [45]
37 degrees Ill explain in a second but thats it!

6 0
4 years ago
Read 2 more answers
Six identical circles fit inside the rectangle as shown below. If the rectangle has a width of 15
irakobra [83]

Answer:

The radius of each circle is 2.5 units

Step-by-step explanation:

7 0
3 years ago
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