Answer:
18:6
Step-by-step explanation:
3 + 1 = 4
24 ÷ 4 = 6
3 x 6 = 18
6 x 1 = 6
Answer:
$24.40
Step-by-step explanation:
3.60×6=21.6
21.60+2.80=$24.40
Your answer is simple, it's x = 0
Answer:
CI = 29.8 ± 3.53
Critical value is z = 2.58
Step-by-step explanation:
First of all let's find margin of error. It is given by the formula;
ME = zσ/√n
We are given;
Standard deviation; σ = 3.62
Sample size; n = 7
Mean; x¯ = 29.8
Now, z-value for 99% Confidence level is 2.58
Thus;
ME = (2.58 × 3.62)/√7
ME = 3.53
CI is written as;
CI = x¯ ± ME
CI = 29.8 ± 3.53
Critical value is z = 2.58
