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Mumz [18]
3 years ago
12

You would like to determine if there is a higher incidence of smoking among women than among men in a neighborhood. Let women an

d men be represented by populations 1 and 2, respectively. The relevant hypotheses are constructed as ____________.
H0: Mue1-Mue2 less than or equal 0.

Ha: Mue1-Mue2>0

H0: Mue1-Mue greater or equal 0.

Ha: Mue1-Mue<0

H0: P1-P2 less than or equal 0

Ha: P1-P2>0

H0: P1-P2 greater than or 0

Ha: P1-P2<0
Mathematics
1 answer:
sergey [27]3 years ago
4 0

Answer:

<em>H₀</em>: <em>p</em>₁ - <em>p</em>₂ < 0.

<em>Hₐ</em>: <em>p</em>₁ - <em>p</em>₂ > 0.

Step-by-step explanation:

In this case, we need to determine if there is a higher incidence of smoking among women than among men in a neighborhood.

An experiment can be performed involving collecting two samples of men and women and computing the proportion of men and women smokers in the neighborhood. Then these two sample proportions can be used to determine which proportion is higher.

We are computing proportions of men and women smokers instead of the mean number of men and women smokers because the we need to determine the  incidence of smoking among men and women, i.e. the occurrence or frequency or rate of men and women smokers.

So, a two proportion test can be applied to determine whether the proportion of women smokers is higher than men.

The population proportion of women in the neighborhood is represented by <em>p</em>₁ and the  population proportion of men in the neighborhood is represented by <em>p</em>₂.

The hypothesis can be defined as:

<em>H₀</em>: The proportion of women smokers is not higher than men, i.e. <em>p</em>₁ - <em>p</em>₂ < 0.

<em>Hₐ</em>: The proportion of women smokers is higher than men, i.e. <em>p</em>₁ - <em>p</em>₂ > 0.

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Find the ordered pair (x,y) that is a solution to the equation.
miv72 [106K]

Answer:

☑ (¼, 0)

Step-by-step explanation:

{ \tt{4x - y = 1}}

» Assume y is zero:

{ \tt{4x  - 0 = 1}} \\ { \tt{4x = 1}} \\ { \tt{x =  \frac{1}{4} }}

4 0
3 years ago
Que forma tiene un hexágono y como se entre si?
Mars2501 [29]

Answer:

Al igual que los cuadrados y los triángulos equiláteros, los hexágonos regulares encajan sin ningún espacio para enlosar el plano (tres hexágonos se encuentran en cada vértice), por lo que son útiles para construir mosaicos.

8 0
3 years ago
Read 2 more answers
20% of city employees ride the bus to work. This is up 10% from last year. What percent of employees rode the bus to work last y
Pepsi [2]

Answer:

18.18% of employees rode the bus to work last year

Step-by-step explanation:

This question can be solved using a rule of three.

Last year, a proportion of x employees riding the bus was 100% = 1.

This year, 20% = 0.2 ride the bus, which is 100 + 10 = 110% = 1.1 of last year.

So

0.2 - 1.1

x - 1

1.1x = 0.2

x = \frac{0.2}{1.1}

x = 0.1818

0.1818*100 = 18.18%

18.18% of employees rode the bus to work last year

4 0
3 years ago
I need help finding values of x,y,z. I want to know if there is an answer apart from 0, since that is what I need to find. Thank
vichka [17]

Answer:

They all equal zero

Step-by-step explanation:

A number cannot equal itself times any number that isn't zero, unless it itself is zero.

3 0
2 years ago
Sociologists say that 85% of married women claim that their husband's mother is the biggest bone of contention in their marriage
hoa [83]

Answer:

(A) 0.377,

(B) 0.000,

(C) 0.953,

(D) 0.047

Step-by-step explanation:

We assume that having a bone of intention means not liking one's Mother-in-Law

(A) P(all six dislike their Mother-in-Law) = (85%)^6 = (.85)^6 = 0.377

(B) P(none of the six dislike their Mother-in-Law) =

(100% - 85%)^6 =

0.15^6 =

0.000

(C) P(at least 4 dislike their Mother-in-Law) =

P(exactly 4 dislike their Mother-in-Law) + P(exactly 5 dislike their Mother-in-Law) + P(exactly 6 dislike their Mother-in-Law) =

C(6,4) * (.85)^4 * (1-.85)^2 + C(6,5) * (.85)^5 * (.15)^1 + C(6,6) * (.85)^6 = (15) * (.85)^4 * (.15)^2 + (6) * (.85)^5 * .15 + (1) * (.85)^6 =

0.953

(D) P(no more than 3 dislike their Mother-in-Law) =

P(exactly 0 dislikes their Mother-in-Law) + P(exactly 1 dislikes her Mother) + P(exactly 2 dislike their Mother-in-Law) + P(exactly 3 dislike their Mother-in-Law) =

C(6,0) * (.85)^0 * (.15)^6 + C(6,1) * (.85)^1 * (.15)^5 + C(6,2) * (.85)^2 * (.15)^4 + C(6,3) * (.85)^3 * (.15)^3 =

(1)(1)(.15)^6 + (6)(.85)(.15)^5 + (15)(.85)^2 *(.15)^4 + (20)(.85)^3 * (.15)^3 =

0.047

3 0
3 years ago
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