Answer:
x = 8.85
Step-by-step explanation:
20(x - 3) = 170 - 6x
20x - 60 = 170 - 6x
20x + 6x - 60 = 170
26x - 60 = 170
26x = 170 + 60
26x = 230
x = 230 / 26
x = 115 / 13
x = 8.84615 ≈ 8.85
Answer:
(2,3)
Step-by-step explanation:
It would be (2,3) b/c H is on the point (2,3) and by the way 2 is on the y-axis and 3 is on the x-axis
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
Answer:
2
Step-by-step explanation:
Brainliest please
