A lightbulb company claims that their lightbulbs last 1000 hours. To test this claim, a consumer advocate selected a random sample of 20 of the lightbulbs manufactured by the company. The consumer advocate turned on the lightbulbs and recorded the time it took until the lightbulbs burned out. The sample mean time it took until the lightbulbs burned out was > = 990hours. The resulting P-value is 0.078. What conclusion should you make for the given significance levels? For only a = 0.05 we would reject Ho. O There is convincing evidence the lightbulbs last less than 1000 hours at a = 0.05, but not at a = 0.01 For both a = 0.01 and a = 0.05, we O would reject H. There is convincing evidence the lightbulbs last less than 1000 hours at both significance levels For both o = 0.01 and a = 0.05, we would fail to reject Ho. There is not O convincing evidence the lightbulbs last less than 1000 hours at either significance level For only a = 0.01 we would reject Ho O There is convincing evidence the lightbulbs last less than 1000 hours at a = 0.01, but not at a = 0.05