Answer:
Step-by-step explanation:
Given : Sample size : , which is a small sample (, 30) so we use t-test.
Sample mean :
Standard deviation :
Significance level :
Critical value :
The confidence interval for population mean is given by :-
Hence, a 95% confidence interval for the population mean =
<span><span>25th Percentile: 28
</span><span>50th Percentile: 29
</span><span>75th Percentile: 30
</span>Interquartile Range: <span>2</span></span>
Answer:
k = -3x
Step-by-step explanation:
To find the slope, use rise over run
I started from (0, 0)
To get to the next whole number point, you must go up (rise) 3 and go back (run) 1
Since we are going back, the slope is negative.
The rise over run is -3/1 which simplifies to -3
To find y-intercept, we look at the point when x = 0. When x = 0, y = 0 so the y-intercept is 0 (which means you don't have to include it into the equation
y = -3x or k if that's what you use
Answer:
B
Step-by-step explanation:
Graph the line by first using slope and y- intercept
Slope=-1/3
y-intercept =-2
(0,-2)
(1,-7/3)
Then graph those two points and that graph is B