Its super duper easy but please help!
1 answer:
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The equation of a line that is perpendicular to the given line is y = –4x – 16.
Solution:
The equation of a line given is y = 0.25x – 7
Slope of the given line() = 0.25
Let be the slope of the perpendicular line.
Passes through the point (–6, 8).
<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>
Point-slope intercept formula:
and
Substitute these in the formula, we get
Add 8 on both sides of the equation.
Hence the equation of a line that is perpendicular to the given line is
y = –4x – 16
Answer:
The calculated value |Z| = |-2.0375| = 2.0375<2.0541.96 at 0.02 level of significance
A women’s rights organization believes that the average value does not accurately depict the current trend in retirement.
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the mean age of retirement for women, executives is 61.7
Given mean of the Population = 61.7
Given that the size of the sample 'n' = 82
Given that the mean of sample x⁻ = 60.8
Given that the standard deviation 'σ' = 4.0years
<u><em>Step(ii):-</em></u>
Null hypothesis:H₀: μ ≠ 61.7
Alternative Hypothesis: H₁: μ = 61.7
Test statistic
Z = -2.0375
|Z| = |-2.0375| = 2.0375< 2.054 at 0.02 level of significance
<u><em>Final answer:-</em></u>
The calculated value |Z| = |-2.0375| = 2.0375 <2.054 at 0.02 level of significance
A women’s rights organization believes that the average value does not accurately depict the current trend in retirement.