3 years ago

A company produces packets of soap

SAT

1 answer:

Soloha48 [4]3 years ago

3 0

Answer:

(b) 31.85

Explanation:

First, we need to know the z-score for a one-sided confidence interval with 95% coverage. Looking at a z-score table, this value is 1.645. Then:

$x = (z \cdot \sigma) + \mu = (-1.645 \cdot 0.7) + 33 = 31.85$

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