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Mariana [72]
3 years ago
8

Marta is selling a handmade necklace for $250

Mathematics
1 answer:
Alexus [3.1K]3 years ago
3 0

It looks as though A and B are the same, otherwise I would have said that the correct answer is either one of those two. What's the difference between the two?

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A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1221 males​ surveyed, 193 responded that they ha
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Answer:

Step-by-step explanation:

Given that a survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1221 males​ surveyed, 193 responded that they had at least one tattoo. Of the 1005 females​ surveyed, 130 responded that they had at least one tattoo.

H_0:p_1 = p_2\\H_a: p_1 \neq p_2

(two tailed test at 1% significance level)

Difference in proportions = \frac{193}{1221} -\frac{130}{1005} \\=0.029

Standard error for difference in proportions = 0.0150

Margin of error = 2.58*std error

= 0.0387

99% confidence interval =

(0.029-0.0387, 0.029+0.0387)\\=(-0.0097, 0.0677)

Since this confidence interval contains 0 for difference in proporiton we can say that H0 is true.

We are 99% confidence that for samples randomly drawn for large sizes, the males and females have approximately the same proportion.

3 0
4 years ago
The answer please! I mean Ik it’s simple but I’m just not clever
wel

Answer:

596.9 cm^2

Step-by-step explanation:

The surface area of a cylinder is SA=2\pi rh+2\pi r^2 where r is the radius of the base of the cylinder and h is the height of the cylinder.

So, the surface area of the cylinder is:

SA=2\pi rh+2\pi r^2

SA=2\pi (5)(14)+2\pi (5)^2

SA=2\pi(70)+2\pi(25)

SA=2\pi(70+25)

SA=2\pi(95)

SA=190\pi

SA\approx596.9

7 0
3 years ago
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14. 3 (a-2) -4 (29-3)=
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You have $30.00 to spend on new music CDs. If each CD costs $15.00, how many CDs can you purchase? Solve the given inequality 15
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Your answer would be A. x\leq 2
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4 years ago
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Aisha runs a tutoring business, with plan 1, students may choose to pay $15 per hour. with plan 2, they may follow the plan show
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Answer:

that would make no sense go round and round tutor him urself

Step-by-step explanation:

7 0
3 years ago
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