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The option that describes the relationship between the two confidence intervals is; The width of I₈₁ will be¹/₉ the width of I₉
<h3>How to calculate width of the confidence interval with normal distribution?</h3>
The width of the confidence interval will be calculated from the formula;
W = 2Z(σ/√n)
where;
z is the z-score at given confidence level
σ is standard deviation
n is sample size
For first sample;
W_i9 = 2Z(σ/√9)
W_i9 = ²/₃Zσ
For second Sample;
W_i81 = 2Z(σ/√81)
W_i81 = ²/₉Zσ
Thus, we will have;
W_i9/W_i81 = (²/₃Zσ)/(²/₉Zσ)
W_i9/W_i81 = 9
W_i81 = ¹/₉W_i9
Read more about width of confidence interval at; brainly.com/question/15934877
You should work just as hard in a group than by yourself because maybe other people would also be social loafing and then nobody would be giving their best so the final product would be less quality than if they all worked harder even though they are a group.The disadvantage of social loafing would be the quality of the final product would suffer.
Answer:
58.33%
Explanation:
The original price is set at 12, the sale price is 5
This means the price decrease by 7$
do find the percentage, we need to do 7/12
7/12 in percentage is 58.33%
or (58+1/3)%
