Answer:
Step-by-step explanation:
Mean "X"=250
s = 25
n=10
Because Standard deviation is unknown and sample size is small, we must employ the T-distribution
df=n-1 = 10-1
df=9
For 90% confidence, t = 1.833
E=t*s/
= 1.833*(25/
)
E=14.49
The 90% confidence interval is X±E=250±14.49 or 235.51, 264.49
Answer:
I think is is a bit b
Step-by-step explanation:
a or b
For this case we have a function of the form:
y = f (x)
Where,
x: independent variable
y: dependent variable
To answer the question, we must see in the table the values of the independent variable x, for which the values of the dependent variable f (x) are negative.
We have then that the interval that fulfills this condition is from minus infinity to minus 4 without including the 4.
Thus,
(–∞, –4)
Answer:
The entire interval over which the function, f(x), is negative is:
D) (–∞, –4)
The best correct answer is option E. If two or more polygons are congruent, then rigid transformations can be used to map one polygon onto the other. <span>Two figures are said to be congruent when they have the same shape and
size or if one object is a mirror image of the other object.</span>
Answer:
Step-by-step explanation:
