Answer:
1 is the answer
Step-by-step explanation:
Given that the U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions.

(Right tailed test for testing of a sample proportion with population proportion)
Suppose a sample of 400 U.S. workers is collected in 2014 to determine whether union efforts to organize have increased union membership at 0.025 level of significance.
Test statistic Z = 1.31
p value for this right tailed test would be 0.095
This p value is greater than 0.025
Hence at 2.5% significance level the conclusion is correct
1 is the answer.
Answer:
a.
b. No
Step-by-step explanation:
Given:
(3x-9) and
=> the production of them is:
, we will use distributive law to solve this To do that. we first multiply
by 3x then by -9. This is done as follows
=

Then Open both brackets
=
After that, we group the same terms
=
=
(b) Is the product of (3x-9) and
equal to the product of (9x-3) and
No, let find the product of (9x-3) and
, we will use distributive law to solve this as the above example.
= (9x-3)
=
=
=
After that, we open the bracket to find the same terms
=
= 
=
As you can see
≠
Hope it will find you well.
Answer:
V ≈ 552.9 cm³
Step-by-step explanation:
The volume (V) of a cylinder is calculated as
V = πr²h ( r is the radius and h the height ) , then
V = π × 4² × 11 = π × 16 × 11 = 176π ≈ 552.9 cm³ ( to the nearest tenth )