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courses/_148588_1/outline/assessment/_15470134_1/overview/attempt/32 Getting Started Booking.com McAfee Security LastPass password ma... Open Firefox every time you restart your computer? To manage your Startup preferences, search "startup" in settings. Learn more 1 36F Clear C X No thanks Yes, open Firefox 50 minutes remaining 10 OF 15 QUESTIONS REMAINING A sample of 50 batteries had a mean lifetime of 120.1 hours with a standard deviation of 20 hours. What is the margin of error with a 90% confidence level? A 4.65 hours B 5.91 hours C) 7.88 hours D) 4.74 hours Last saved 8:45:23 PM Questions Filter (15) W (Q Search courses/_148588_1/outline/assessment/_15470134_1/overview/attempt/32 Getting Started Booking.com McAfee Security LastPass password ma... Open Firefox every time you restart your computer? To manage your Startup preferences, search "startup" in settings. Learn more 1 36F Clear C X No thanks Yes, open Firefox 50 minutes remaining 10 OF 15 QUESTIONS REMAINING A sample of 50 batteries had a mean lifetime of 120.1 hours with a standard deviation of 20 hours. What is the margin of error with a 90% confidence level? A 4.65 hours B 5.91 hours C) 7.88 hours D) 4.74 hours Last saved 8:45:23 PM Questions Filter (15) W (Q Search
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