Questions: have mean length of 12 cm with a standard deviation of 0.05 cm. For what lengths will a bot be destroyed?
Select the correct choice below and fill in the answer box(s) to complete your choice (Round to one decimal place as needed) A. A bot will be destroyed if the length is between cm and km B. A bot will be destroyed if the length is less than cm C. A bot will be destroyed if the length is less than cm or greater than cm. D. A bolt will be destroyed if the length is greater than cm.
Transcript text: have mean lengh of 12 cm whin a standard deviation of 005 cm . For what lengts will a bot be destroyed?
Select the correct choice below and fill in the answer box(s) to complete your choice (Round to one decimal place as needed) A. A bot will be destroyed if the length is between $\square$ cm and $\square$ km B. A bot will be destroyed if the lengh is less than $\square$ cm C. A bot will be destrojed if the length is less than $\square$ om or greater than $\square$ cm. D. A bolt will be destroyed it the longth is greater than $\square \mathrm{cm}$.
Solution
Solution Steps
Step 1: Given Information
We are provided with the following parameters for the lengths of bolts:
Mean length (\( \mu \)) = 12 cm
Standard deviation (\( \sigma \)) = 0.05 cm
Step 2: Determine Destruction Criteria
To determine the lengths at which a bolt will be destroyed, we apply the 3-sigma rule. A bolt is considered destroyed if its length is more than 3 standard deviations away from the mean. This can be expressed mathematically as:
\[
\text{Destruction Criteria: } L < \mu - 3\sigma \quad \text{or} \quad L > \mu + 3\sigma
\]
Step 3: Calculate the Bounds
We calculate the lower and upper bounds using the mean and standard deviation: