Activity 6. Parameter Plus! Directions: Determine the parameter to be tested in the given problems below. 1. An electric lamps manufacturer is testing a new method of producing lamps that will be considered acceptable in a normal population with an average life of 2,600 hours and a standard deviation equal to 350. A sample of 80 lamps produced by this method has an average life of 2,630 hours. Can the hypothesis of validity for the new manufacturing process be accepted with a risk equal to or less than 5%? 2. A car dealer claims that the average price of Honda Vios is at least P662,000.00. A client suspected that the claim is incorrect and found 10 that random sample of 15 similar vehicles has the mean price of P640,000.00 and standard deviation of P 24,000.00. Is there enough evidence to reject the dealer's claim at a = 0.05