Answer:
For this case we want to test if there is a higher incidence of smoking among women than among men in a neighborhood (alternative hypothesis). And we define p1 for men and p2 for women, so for this case the best system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the best option would be:
a) h0: p1-p2 ≥ 0 h1: p1-p2 < 0
Step-by-step explanation:
Previous concepts
A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".
The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".
The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".
Solution to the problem
For this case we want to test if there is a higher incidence of smoking among women than among men in a neighborhood (alternative hypothesis). And we define p1 for men and p2 for women, so for this case the best system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the best option would be:
a) h0: p1-p2 ≥ 0 h1: p1-p2 < 0
Answer:
$25
Step-by-step explanation:
Since she is going to be there 6 weeks, and she has $125, she would need to divide 125 by 6, to get a answer of $25. The most she can spend each week is $25
For 0,2 you would start at the 0 and go up to 2 on the y-axis and that would be 0,2. for -1,-1 you would find -1 on the x-axis and then move one down on the y-axis and plot your point for -1,-1.
Answer:
Slope of the regression line
Step-by-step explanation:
The slope of the regression line including the intercept shows the linear relationship between two variables, and can also therefore be utilized in estimating an average rate of change.
The slope of a regression line represents the rate of change in the dependent variable as the independent variable changes because y- the dependent variable is dependent on x- the independent variable.
5/6 - 1/8 = 5(8)/[6(8)] - 1(6)/[8(6)]
5/6 - 1/8 = [5(8) - 1(6)]/[8(6)]
5/6 - 1/8 = [40 - 6]/[48]
5/6 - 1/8 = [34]/[48]
5/6 - 1/8 = 17/24 (reducing the fraction by diving top/numerator and bottom/denominator by 2)