X+4.9=7.28 x= what is the answer
2 answers:
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Answer: 0.418 < p < 0.512
Step-by-step explanation: A 95% conifdence interval for a population proportion is given by:
where:
p is the proportion
z is score in z-table
n is sample size
The proportion for people who said "yes" is
= 0.465
For a 95% confidence interval, z = 1.96.
Calculating
0.465 ± 1.96*0.024
0.465 ± 0.047
Interval is between:
0.465 - 0.047 = 0.418
0.465 + 0.047 = 0.512
<u>The interval with 95% of confidence is between 0.418 and 0.512.</u>
Answer:
Step-by-step explanation:
Slope-intercept form is
Where <em>m</em> = slope,
and <em>b</em> = y-intercept.
The problem states that the slope is , and it also states that one point on the line is the origin. (0, 0)
Because the origin crosses the y-axis at point 0, we know that the y-intercept is 0.
All that's left to do is plug these values into the slope formula.
We can then simplify the equation even more.