statistics help

QUESTION 9 Previously, an organization reported that teenagers spent 6.5 hours per week, on average, on the phone. The organization thinks that the mean is currently higher. Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 7.25 hours with a sample standard deviation of 2.0. Which assumptions or conditions are not met for this hypothesis testing problem. If all are okay then choose "None." Randomization Assumption . Independence Assumption O Is n big enough? None QUESTION 10 A large nationwide poll recently showed that 44% of households have a gun. The mayor of a local town wonders if this national result holds true for her town, so she plans on taking a sample of households in her town to see if the percentage is significantly different than 44%. What is a type 1 error in this situation? O The percentage of households with guns is different than 44% and the mayor concludes it is different. The mayor concludes that percentage of households with guns in her town is 44% when in fact it is different than 44%. The percentage of households with guns is 44% and the mayor concludes it is 44%. The mayor concludes that percentage of households with guns in her town is different than 44% when in fact it is 44%. QUESTION 11 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All MacBook Pra