Please help me answer this so i dont fail its due very soon!! i will mark you brainliest

Do men’s voting preferences differ significantly from women’s voting preferences?"" Use a level of significance of α = 0.05. Whi

baherus [9]

Answer:

H₀: The voting preference of men and women are not different.

Hₐ: The voting preference of men and women are not different.

Step-by-step explanation:

A hypothesis test for two proportions can be used to determine whether the preference of men differ from women in case of voting.

A Chi-square test contingency table can be used to perform the test.

The hypothesis can be defined as:

H₀: The voting preference of men and women are not different.

Hₐ: The voting preference of men and women are not different.

The test statistic is:

$\chi^{2}=\frac{Row\ total\times Column\ total}{N}$

Decision rule:

If the p-value of the Chi-square test statistic is less than the significance level α = 0.05 then the null hypothesis will be rejected. And if the p-value is more than the significance level then the null hypothesis will not be rejected.

8 0

3 years ago

Determine the equation of the linear function that has a slope of -4 and passes through the point (2,-4). Write the equation in

padilas [110]

Answer:

Part 1) $y=-4x+4$

Part 2) The graph in the attached figure

Step-by-step explanation:

Part 1)

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

$m=-4\\point\ (2,-4)$

substitute in the linear equation

$-4=-4(2)+b$

solve for b

$-4=-8+b\\b=8-4\\b=4$

substitute

$y=-4x+4$

Part 2) Draw the equation

we know that

To graph a line we need two points

we have the y-intercept (0,4) and (2,-4)

Plot the points, connect them and join to draw the line

see the attached figure

7 0

3 years ago

Need help Math Question Multiple Choice!

erica [24]

Given :

A function f(x) for different range of x.

To Find :

The value of f( -3 ) .

Solution :

We have to find the value of function at x = -3.

Now, in the given figure -3 lies in range x ≤ -2 and definition of function at that range is :

$f(x) = \dfrac{2}{x}$

So, putting value of x = -3 in above equation, we get :

$f(-3) = \dfrac{2}{-3} \\\\f(-3) = \dfrac{-2}{3}$

Hence, this is the required solution.

8 0

2 years ago

A) A pack of 8 batteries cost £3.99 how much dose each battery cost? ( give your answer in penny ?) ____________________________

just olya [345]

Answer:

A). 50 penny

B) This type of battery is cost effective.

Step-by-step explanation:

A) A pack of 8 batteries cost 3.99 pounds so one battery will cost = 3.99/8 = 0.499 pound

Since 1 pound = 100 penny

So 0.499 pound = 100×0.499 = 50 penny

B). A pack of 6 batteries of the same type costs 2.79 pounds

So one battery will cost = 2.79/6 = 0.465 pound or 47 penny

Now we say that type A batteries are costlier than B. Therefore B type batteries are of a better value.

6 0

3 years ago

Read 2 more answers

7 Find the AREA of the regular polygon. Il (2 points) 20 18.8 13.68

rodikova [14]

Answer:

Answer is 18.8 please mark me Brainliest

Step-by-step explanation:

3 0

2 years ago