Answer:
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 26
The mean is
The standard deviation is 
From the question we are told the confidence level is 95% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the margin of error is mathematically represented as
=>
=>
Generally 95% confidence interval is mathematically represented as
=>
=>
Answer:
y = 2x - 1
Step-by-step explanation:
1(2) - 1 = 1
2(2) - 1 = 3
3(2) - 1 = 5
4(2) - 1 = 7
The answer for <span>−n+(−4)−(−4n)+6 is 2
</span>
Answer:
x^3 - 2x^2 + 9x - 18.
Step-by-step explanation:
The complex roots occur in conjugate pairs so there are 3 roots 2, 3i and -3i.
So we have:
P(x) = (x - 2)(x - 3i)(x + 3i)
= (x - 2)(x^2 - 9i^2)
= (x - 2)(x^2 - 9*-1)
= (x - 2)(x^2 + 9)
= x^3 + 9x - 2x^2 - 18
= x^3 - 2x^2 + 9x - 18.
Answer:
0.00139746127868
Step-by-step explanation:
just use a coculator