Poisson corporation has the following six tasks and the associated times for those tasks to complete a project. task predecessor(s) duration (weeks) s none 2 o s 10 f s 7 t o 6 e o, f 11 n t, e 1 calculate the late finish (lf) time for task n. group of answer choices 18 weeks 17 weeks 12 weeks 23 weeks 24 weeks

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer