1.Express the confidence interval 26.1140.8 in interval form. Express the answer in either decimal format or as percents.

2.You measure 33 watermelons' weights, and find they have a mean weight of 40 ounces. Assume the population standard deviation is 14.4 ounces. Based on this, construct a 99% confidence interval for the true population mean watermelon weight. Give your answers as decimals, to two places= ____ ounces

3.you measure 44 textbooks' weights, and find they have a mean weight of 38 ounces. Assume the population standard deviation is 3.3 ounces. Based on this, construct a 99% confidence interval for the true population mean textbook weight. answers as decimals, to two places ___ < <____

4.In a survey, 31 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $47 and standard deviation of $7. Find the margin of error at a 95% confidence level. Give your answer to two decimal places.

5.Express the confidence interval (697.5,969.5) in the form of xME.