Question

Question 2

subsidies? 75 IV.) or not to accept a claim. For the following problems, show all 4-steps below to determine whe er a) State the null and alternate hypothesis. ( 1 pts ) b) Draw a picture of rejection/non-rejection regions and find critical values. (4 pts) c) Calculate a test statistic. Optional: Find p-value. (4 pts) d) Determine whether to accept or reject the claim ( 1 pts) A. Zapp Power Company claims a two-bedroom home will have an average utility bill of $105 per month. Roommates Ben and Jerry list their uti y bills each month below. $60, $70, $85, $80, $105, $120, $170, $165, $110, $95, $85, $65 Using a 1% level of significance, can we accept Zapp Co's claim? B. The Department of Transportation claims Americans spend an average of $960 a year on gasoline just waiting in traffic. A sample of 30 driver is taken and finds they spend on traffic waits on average $930 a year, with a standard deviation of $285. Using a 10% level of significance, can we accept C. The Department of Justice is investigating concerns whether or no its inmates is 195 pounds or more with a standard deviation of 21 pounds. A Department of Transportation's claim? inmates at a certain prison are underfed. The prison claims the average weig random sample of 25 inmates finds an average weight of 190 pounds. Using 5% level of significance, can we accept the prison's claim or is there a possibility inmates are underfed?

Answer 1