0 Question 11 v B 0/1 pt '0 3 G) Details Company XYZ know that replacement times for the quartz time pieces it produces are
0 Question 11 v B 0/1 pt '0 3 G) Details Company XYZ know that replacement times for the quartz time pieces it produces are normally distributed with a mean of 13.4 years and a standard deviation of 1.1 years. If the company wants to provide a warranty so that only 0.7% of the quartz time pieces will be replaced before the warranty expires, what is the time length of the warranty? warranty = years Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact zscores or z-scores rounded to 3 decimal places are accepted. 0 Question 8 v IL/ 0/1 pt '0 3 G) Details The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 33 liters, and standard deviation of 5 liters. A) What is the probability that daily production is less than 40.5 liters? Use technology (not tables) to get your probability. Answer: | (Round your answer to 4 decimal places.) B) What is the probability that daily production is more than 21.3 liters? Use technology (not tables) to get your probability. Answer=| | (Round your answer to 4 decimal places.) Warning: Do not use the Z Normal Tables...they may not be accurate enough since WAMAP may look for more accuracy than comes from the table. 0 Question 7 v IL/ 0/1 pt '0 3 G) Details Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 5.6-in and a standard deviation of 1.1 -in. Due to nancial constraints, the helmets will be designed to t all men except those with head breadths that are in the smallest 3.2% or largest 3.2%. What is the minimum head breadth that will t the clientele? min =| | What is the maximum head breadth that will t the clientele? max=| | Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact zscores or z-scores rounded to 3 decimal places are accepted. 0 Question 6 v IL/ on pt '0 3 G) Details The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.944 g and a standard deviation of 0.306 g. Find the probability of randomly selecting a cigarette with 0.57? g of nicotine or less. 2 P(X:: 0.577 g) =| Enter your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact zscores or z- scores rounded to 3 decimal places are accepted
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