The variance over the past 7 years, of the lengths (in inches) of a particular manufactured product has been 80. However, recent changes have given rise to the suspicion that this may no longer be the case. A recent sample of 15 such product lengths had a calculated sample standard deviation of 8 and mean of 9.4. Select the 95% confidence for the true variance of the product lengths. Use the appropriate table in the book.
Recently Asked Questions
- PS.52 The Station, a boutique cookie company, needs to create a production process for its new cinnamon malt ball cookies. To help accomplish this, the company
- Please refer to the attachment to answer this question. This question was created from ENG 101 TEST 2 ATTEMPT 1.
- Some researchers have found that when Germans work for a U.S. MNC, they become even more German, and when Americans work for a German MNC, they become even