Answer:
-11.167 is the answrr
Step-by-step explanation:
Can you re-phrase the question
Answer:
39%
Step-by-step explanation:
Answer:
X=11 not so sure about y
Step-by-step explanation:
Since this is a square, x and 11 sides are the same. So, x would have to be 11. Sorry I can’t help on y but I hope this helps.
Answer:
The sample size is 4
Step-by-step explanation:
Null hypothesis: The mean is 2
Alternate hypothesis: The mean is less than 2
Mean = 3
sd = sqrt(variance) = sqrt(4) = 2
At 95% confidence level, t-value is 1.960
Assuming the lower bound of the mean is 1.04
Lower bound = mean - (t×sd/√n)
1.04 = 3 - (1.96×2/√n)
3.92/√n = 3 - 1.04
3.92/√n = 1.96
√n = 3.92/1.96
√n = 2
n = 2^2
n = 4
