Question 9 of 12, Step 1 of 1 Correct A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes. If the claim is true, in a sample of 152 batteries, what is the probability that the mean battery life would be greater than 636.4 minutes? Round your answer to four decimal places. Answer How to enter your answer (opens in new window) Tables 0 Keypad Keyboard Shortcuts
Question 9 of 12, Step 1 of 1 Correct A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes. If the claim is true, in a sample of 152 batteries, what is the probability that the mean battery life would be greater than 636.4 minutes? Round your answer to four decimal places. Answer How to enter your answer (opens in new window) Tables 0 Keypad Keyboard Shortcuts
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![**Question 9 of 12, Step 1 of 1**
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes.
If the claim is true, in a sample of 152 batteries, what is the probability that the mean battery life would be greater than 636.4 minutes? Round your answer to four decimal places.
**Answer**
[Text Box for Answer Entry]
**Explanation of Interface Elements:**
- The page shows a progress indicator (6/12) with "Correct" marked.
- Two buttons are available:
- "Tables"
- "Keypad"
There is a link provided: "How to enter your answer (opens in a new window)" as well as a link for "Keyboard Shortcuts".](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2482ff27-6cff-4eb7-ab8c-6933b0814473%2Fb78ce6b7-52fb-4173-a159-381296a3ffba%2Fqqokl99_processed.png&w=3840&q=75)
Transcribed Image Text:**Question 9 of 12, Step 1 of 1**
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes.
If the claim is true, in a sample of 152 batteries, what is the probability that the mean battery life would be greater than 636.4 minutes? Round your answer to four decimal places.
**Answer**
[Text Box for Answer Entry]
**Explanation of Interface Elements:**
- The page shows a progress indicator (6/12) with "Correct" marked.
- Two buttons are available:
- "Tables"
- "Keypad"
There is a link provided: "How to enter your answer (opens in a new window)" as well as a link for "Keyboard Shortcuts".
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