M Inbox (75) - Ipearl@communityp x | Home D21 5-2 Challenge Activities: Mean H x zy Section 5.2 - MAT 240: Applied S Course Hero * > Radio 95.1 - Rochester's Rad 41 x C A coursehero.com/qa/wait/41650023/ zyBooks My library > MAT 240: Applied Statistics home > 5.2: Hypothesis test for a population mean zyBooks catalog ? Help/FAQ & Kristin Segovia Get homework help X Feedback? Get connected with a verified expert tutor 24/7 Ask a question Connect with Tutor works on Receive your Receive answer and explanation in as few as 30 minutes Learn more an expert your question solution CHALLENGE ACTIVITY 5.2.2: Excel: Hypothesis test for a population mean. B I U X X 1 : fx [ Click this link to download the spreadsheet for use in this activity. 9736.819 402594 2596006.q Jump to level 1 10395.28 11462 Use Sheet 5 of the Excel file to answer the following questions. 10384.62 A company that makes LED light bulbs claims that the bulbs have a lifetime of 11,000 hours. Quality control 9687.039 tests a random sample of 45 light bulbs to determine if the lifetime is less than 11,000 hours at a confidence level of 0.05. Create a histogram, and calculate a, the t-statistic, and the p-value. 10981.92 From the histogram, can normality be assumed? Pick v 11444.62 a = Ex: 1.234 11136.93 t = 9312.145 p = 9915.524 Since the p-value is Pick than the significance level 0.05, the null hypothesis Pick Pick evidence exists that the mean lifetime is less than 11,000 hours. Drag and drop images or Upload 2 Next Check Next Feedback? 2. Select the best subject How was this section? " ! Provide feedback 1:16 PM 6/3/2022 Type here to search 9 72.F Partly sunny ~ 4 536PM
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