1 /Pg 417 / Double click on chart below to get file , will send file separately , this is just a sample . The file POS Ol alex contains a random sample of 100 lightbulb lifetimes . The that prod ampany that produces these lightbulbs wants to know whether it can claim that its lightbulbs pically last more than 1090 burning hours Lightbulb Lifetime 840 08 960 00 953. 38 This is fictitious data 781, 14 838.68 051 14 907 84 1000. 10 1073.20 1 150.60 101057 791.59 a identify the null and alternative hypotheses for this situation b . Can this light bulb manufacturer claim that its light bulbs typically last more than 1900 hours at the 50% significance level ? What about at the 1 9 . significance level ? Explain you ETSWERE # 2 ( Pg 417 ) A manufacturer is interested in determining whether it can claim that the boxes of detergent it sells contain on average more than 500 grams of detergent . The firm selects a andom sample of 190 boxes and records the amount of detergent ( in grams in each box . The to are data are provided in the file POS 02 xax Double click on chart below to get file , will send file separately , this is just a sample