Hello, can you answer these questions for me!!! Thankyou so much!
= Multiple Choice: 2 points each= 1. For a random sample of 9 women, the average resting pulse rate is x=7 6 beats per minute, and the sample standard deviation is s=5 . The standard error of the sample mean is A. 0.557 B. 0.745 1.667 D. 2.778 2. Which of the following statements is true about a parameter and a statistic for samples taken from the same population? A. The value of the parameter varies from sample to sample. B. The value of the statistic varies from sample to sample. C. Both A and B are true. D. Neither A nor B are true. 3. Suppose we select a random sample of 100 students and find that the proportion who said they believe in love at first sight is 0.43. Which statement is NOT necessarily true? A. There were 43 students in the sample who said they believe in love at first sight. B. Based on the information provided by the sample, we cannot determine exactly what proportion of the population would say they believe in love at first sight. C. p =0.43 D. P=0.43 4. A shopper wanted to test whether there was a difference in the average waiting times at the check-out counter among 5 different supermarkets. She selected a random sample of 20 shoppers from each of the five supermarkets. What is the alternative hypothesis for this situation? A. The average waiting time to check out is 25 minutes for all five supermarkets. B. The average waiting time to check out is the same for all five supermarkets. The average waiting time for each of the 100 shoppers is different. The average waiting time to check out is not the same for all five supermarkets. 5. The estimation of the population average age of registered voters in the state of Ohio based on the sample average age of 1,000 registered voters in that state and its corresponding margin of error is an example of A. Parameters. B. Deductive statistics. C. Inferential statistics. D. Descriptive statistics. 6. Which statement is NOT true about confidence intervals? A. A confidence interval is an interval of values computed from sample data that is likely to include the true population value. B. An approximate formula for a 95% confidence interval is sample estimate + margin of error. C. A confidence interval between 20% and 40% means that the population proportion lies between 20% and 40%. D. A 99% confidence interval procedure has a higher probability of producing intervals that will include the population parameter than a 95% confidence interval procedure. 7. A randomly selected sample of 400 students at a university with 15-week semesters was asked whether or not they think the semester should be shortened to 14 weeks (with longer classes). Forty-six percent (46%) of the 400 students surveyed answered "yes." Which one of the following statements about the number 46% is correct? A. It is a sample statistic. B. It is a population parameter. C. It is a margin of error. D. It is a standard error. 8. A random sample of 600 adults is taken from a population of over one million, in order to compute a confidence interval. If the researchers wanted to decrease the width of the confidence interval, they could: A. Decrease the size of the population C. Increase the size of the population B. Decrease the size of the sample D. Increase the size of the sample
