Can someone please solve this for me??!?
2 answers:
I've not seen this before but to solve it I would calculate the area for both and subtract the smaller from the larger.
36 x 36 = 1,296
1296 x 3.14/4 = 1,017.36
16 x 16 = 256
256 x 3.14/4 = 200.96
1017.36 - 200.96 = 816.4 yd So I would go with B. which is already selected, so you're good to go.
Hope this helped! <3
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I Wii help with some but not all cause I do have online work to do
No, there is significant difference in the use of e readers by different age groups.
Given sample 1 ( 29 years old) =628,
=7%, sample 2( 30 years old)
=2309,
=0.11.
We have to first form hypothesis one null hypothesis and other alternate hypothesis.
π1-π2=0
π1-π2≠0
α=0.05
Difference between proportions
The pooled proportion needed to calculate standard error is:
=(44+254)/(628+2309)
=0.10146
The estimated standard error of difference between means is computed using the formula:
=
=
=
=0.01315
Z= Pd-(π1-π2)/
=-0.04-0/0.013
=-3.0769
This test is a two tailed test so the p value for this test is calculated as (using z table)
p value:2 P(Z<-3.0769)
=2*0.002092
=0.004189
P value< significance level of 5%.
Hence there is enough evidence to show the claim that there is a significant difference in the use of e readers by different age groups.
Learn more about hypothesis at brainly.com/question/11555274
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Question is incomplete as it also includes:
Significance level of 5%.