Question: Guarantee: Watches . Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of 28 months before certain electronics components deteriorate, causing the watch to become unreliable. The standard deviation of a watch lifetime is 5 months, and the distribution of the lifetime is normal

1. If Accrotime guarantees a full refund on any defective watch for 2 years after purchase, what percentage of total production will the company expect to replace?
2. If Accrotime does not want to make refunds on more than 12% of the watches it makes, how long should the guarantee period be (to the nearest month).

Price: $2.99

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