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egoroff_w [7]
3 years ago
5

The amount of food that there will be at the fiesta

Mathematics
1 answer:
olga_2 [115]3 years ago
8 0

I think the independent variable is the number of the students who attend the fiesta and the dependent variable is the amount of food there will be at the fiesta

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Answer:

(115.2642, 222.7358).

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type B: n_2=180, xbar_2=1658, s_2=225

n_1 = sample size 1, n_2= sample size 2

xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.

a=0.05, |Z(0.025)|=1.96 (from the  standard normal table)

So 95% CI is

(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]

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