Answer:
The 95% confidence interval estimate of the true population proportion of U.S. employers that were likely to require higher employee contributions for health care coverage is 0.52 +/- 0.0370
= (0.4830, 0.5570)
The margin of error M.E = 0.0370
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
p+/-z√(p(1-p)/n)
p+/-M.E
Given that;
M.E = margin of error
Proportion p = 52% = 0.52
Number of samples n = 700
Confidence interval = 95%
z value (at 95% confidence) = 1.96
Substituting the values we have;
0.52 +/- 1.96√(0.52(1-0.52)/700)
0.52 +/- 1.96(0.0189)
0.52 +/- 0.0370
( 0.4830, 0.5570)
The 95% confidence interval estimate of the true population proportion of U.S. employers that were likely to require higher employee contributions for health care coverage is 0.52 +/- 0.0370
= (0.4830, 0.5570)
The margin of error M.E = 0.0370
a)
Using 2 points (6,9) and (10, 13)
b)
Slope = (13 - 9) / (10 - 6) = 4/4 = 1
Slope = 1
c)
Point slope form
y - 9 = 1(x - 6)
or
y - 13 = 1(x - 10)
Hope it helps
Answer:
B. y - 1 = -4[x - (-3)]
Step-by-step explanation:
Given:
Slope = -4
Point = (-3, 1)
Required:
Point-slope form of the line
Solution:
Equation of a line in Point-slope form is given as y - b = m(x - a).
Where,
a = -3
b = 1
m = -4
Plug in the values
y - 1 = -4[x - (-3)]
Answer:
see below
Step-by-step explanation:
The x intercepts are where it crosses the x axis
( -4,0)
The y intercepts are where it crosses the y axis
( 0, 4)
Answer:
Number of boys = 6
Step-by-step explanation:
It is given that:
Number of girls in school club = 16
Let,
b be the number of boys.
g be the number of girls.
g = 2b + 4
Putting g=16
16 = 2b + 4
16 - 4 = 2b
2b = 12
Dividing both sides by 2
Therefore,
Number of boys = 6
