Answer:
a) H0 : u = 28.5%
H1 : u < 28.5%
b) critical value = - 1.645
c) test statistic Z= - 1.41
d) Fail to reject H0
e) There is not enough evidence to support the professor's claim.
Step-by-step explanation:
Given:
P = 28.5% ≈ 0.285
X = 210
n = 800
Level of significance = 0.05
a) The null and alternative hypotheses are:
H0 : u = 28.5%
H1 : u < 28.5%
b) Given a 0.05 significance level.
This is a left tailed test.
The critical value =
The critical value = -1.645
c) Calculating the test statistic, we have:
Z = -1.41
d) Decision:
We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645
e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.
Not is posible because no exist a igualty
Answer:
The second one. (The triangle is not acute because 2+4>5)
Step-by-step explanation:
If you try to make the triangle, one angle would be obtuse so it's not acute.
Pls give brainly, im trying to get the most possible :>
As area of a square is (side)^2. Here one side is 5y.so the polynomial best suits for the area of this square is (5y)(5y)=25y^2
The inequality is y < 2x - 3 and the graph of the inequality is graph (a)
<h3>How to isolate y?</h3>
The inequality is given as:
y + 2x < 4x - 3
Subtract 2x from both sides of the inequality
y < 2x - 3
The above inequality uses the < symbol.
This means that the line of the inequality is a dotted line, it is shaded to the right and it crosses the y-axis at y = -3
Hence, the graph of the inequality is graph (a)
Read more about inequality at:
brainly.com/question/25275758
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