To solve for the confidence interval for the true average
percentage elongation, we use the z statistic. The formula for confidence
interval is given as:
Confidence interval = x ± z σ / sqrt (n)
where,
x = the sample mean = 8.63
σ = sample standard deviation = 0.79
n = number of samples = 56
From the standard distribution tables, the value of z at
95% confidence interval is:
z = 1.96
Therefore substituting the known values into the
equation:
Confidence interval = 8.63 ± (1.96) (0.79) / sqrt (56)
Confidence interval = 8.63 ± 0.207
Confidence interval = 8.42, 8.84
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(6x-2)(6x-2) = 36x-12x-12x+4 = 36x+4
Answer:
3
Step-by-step explanation:
(6 + 2 x 6)/(15 - 11 + 2)
(6 + 12)/(4 + 2)
18/6
3
Answer:
6x^2 + 65x + 150
Explanation:
(3x+10)(2x+15)
6x^2 + 45x + 20x + 150
6x^2 + 65x + 150
Cubs to female bear; 3/1 = 3
answer
3
