The lengths of the products produced in a production process are controlled. The standard deviation is 0.45 mm.

UkusakazaL

UkusakazaL

Answered question

2021-08-02

The lengths of the products produced in a production process are controlled. The standard deviation is 0.45 mm. A quality control specialist keeps checking over 40 units randomly every morning. Average length in one day 35.62mm. when it happens. Which of the following is the confidence interval for the mean population mean at 95% confidence level?
A) P(60<μ<70)=0,95
B) P(30<μ<40)=0,05
C) P(30<μ<40)=0,95
D) P(60<μ<70)=0,05
E) P(70<μ<80)=0,95

Answer & Explanation

Cem Hayes

Cem Hayes

Beginner2021-08-06Added 1 answers

Step 1
It is an important part of statistics. It is widely used.
Step 2
Option C is correct

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