Please help. I cannot figure minitab out!

Instructions: Below you will find questions and a sample dataset. Please use the provided dataset to complete the tasks and to answer the questions. 1. Assuming that the following sample is taken from a normal distribution, compute the 90% confidence interval for the population mean. Dataset: 67.2 82.2 59.7 54.9 77.7 48.1 95.2 63.8 96.7 87 2. A telecommunication company wants to estimate the mean length of time (in minutes) that 18- to 24- year-olds spend text messaging each day. In a random sample of fifty-eight 18- to 24- year-olds, the mean length of time spent text messaging was 29 minutes. From past studies, the company assumes that o is 4.5 minutes and that the population of times is normally distributed. a. Compute a 99% confidence interval for the population mean time that 18- to 24-year- olds spend text messaging each day. b. Interpret the confidence interval found in part a. c. What does the phrase "99% confidence" refer to in this context? 3. The following table shows the results of a survey in which 1017 adults from the United States, 1060 adults from Italy, and 1126 adults from Great Britain were asked the question: "Does climate change pose a large threat to the world?" Country Percentage That Responded "Yes" United States 27% Italy 49% Great Britain 31% Construct and interpret a 98% confidence interval for a. The population proportion of adults from the United States who say that climate change poses a large threat to the world. b. The population proportion of adults from Italy who say that climate change poses a large threat to the world. The population proportion of adults from Great Britain who say that climate change poses a large threat to the world