Gen 104- University Of Louisville Math Mc Questions Answers

1. Which of the following are types of estimation in statistics?Point estimationExpanded estimationInterval estimationBoth I and III2. Which of the following statements is true about a 95% confidence interval in which the population mean is contained within the interval 3.2 to 3.8? (1 point)The sample mean is 3.5.3. Which of the following statements is NOT a possible alternative hypothesis? (1 point)The mean is equal to the null hypothesis.4. There is a new treatment to help smokers stop smoking. In an experiment, 80% of 300 smokers quit after 10 days of treatment. Which of the following is the 95% confidence interval?(0.755, 0.845)5. Find the 99% confidence interval for the population mean when the population standard deviation is three and the sample mean is six. Assume the population has a normal distribution and 10 items are in the sample. (1 point)(3.56, 8.44)6. The number of candy pieces in a bag is calculated for a sample of 40 bags from a particular manufacturer. Based on these data, the sample mean is 20.35 pieces. The population standard deviation is 3.6 (remember, this is the unrealistic part; we would not really know this).Which of the following is a 95% confidence interval (CI) for the mean