Problem 14 of 7
Estimate population mean from sample result mean battery life 9.2 hours for 40 tested batteries.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
identify sample mean as estimate.
Hidden until you reveal it.
Identify sample mean as estimate in measurement contexts.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify measured quantitative variable.
2. Find or read sample mean.
3. State it as estimate of population mean.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using individual measurements as the parameter.