Two plus three times n equals 4 times n
Answer:
Mean of these n = 23 observations is 16.21 .
Step-by-step explanation:
We are given with the one‑sample t statistic from a sample of n = 23 observations for the two‑sided test of H0 : μ = 15 versus Hα : μ > 15 has the value t = 2.24 . Also, the standard deviation from the sample is 2.4.
So, Null Hypothesis,
:
= 15
Alternate Hypothesis,
:
> 15
The test statistics that is used here is One sample t-test statistics;
T.S. =
~ ![t_n_-_1](https://tex.z-dn.net/?f=t_n_-_1)
where,
= sample mean
= population mean = 15
s = sample standard deviation = 2.4
n = sample size = 23
So, test statistics =
~ ![t_2_2](https://tex.z-dn.net/?f=t_2_2)
2.24 =
1.21 =
- 15
= 1.21 + 15 = 16.21
Therefore, mean of n = 23 observations is 16.21 .
Answer:
Step-by-step explanation:
hello :
note :
for all x in ℝ : 1) sin(x+2kπ) = sinx ...k in Z 2) sin(-x) = -sinx
in this exercice :
sin(-4π-x)= sin(-x) = -sinx because : -4π = 2(-2)π (form : 2kπ when : k=-2)
Answer:
0.64, she spent 64% of her money.
Step-by-step explanation:
Answer:
10 divided by 2 =5
Step-by-step explanation:
As the intervals are of 2.. and they extend all over from 0 to 10.. hence dividing it..