16:30
16/30
16 to 30
is the ratio of girls to the classmembers
Hope this helps!
Answer:
30mm
Step-by-step explanation:
Small Parallelogram= 5×10
Big Parallelogram= 15×?
15÷5=3
?÷10=3
?=30
30÷10=3
If there 20 % fat in 32 piece
1 piece will be 20/32 = 0.625%
In 4 pieces will be 4* 0.625% = 2.5%
Answer:
A. n = 22
Step-by-step explanation:
Hello!
The researcher conducted a one-sample t-tas with the following hypotheses:
H₀: μ = μ₀
H₁: μ ≠ μ₀
α:0.05
The one-sample t-test has "n-1" degrees of freedom and since the hypotheses are two-tailed you know that the rejection region will be divided into two tails with "α/2" for each tail. ± ![t_{n-1;1-\alpha /2}](https://tex.z-dn.net/?f=t_%7Bn-1%3B1-%5Calpha%20%2F2%7D)
If α:0.05 then α/2:0.025 and 1-α/2= 0.975
Using the given sample sizes as a reference you look in the table for the corresponding DF for an accumulated probability of 0.975
For n = 22 ![t_{21;0.975}= 2.080](https://tex.z-dn.net/?f=t_%7B21%3B0.975%7D%3D%202.080)
For n= 21 ![t_{20;0.975}= 2.086](https://tex.z-dn.net/?f=t_%7B20%3B0.975%7D%3D%202.086)
For n= 20 ![t_{19;0.975}= 2.093](https://tex.z-dn.net/?f=t_%7B19%3B0.975%7D%3D%202.093)
The correct answer is a) n= 22
I hope this helps!