Scenario 2 A group of 36 senior citizens living in an assisted living facility took a standard IQ test. The administrator of the home believes this group of residents is exceptionally sharp and decides to do a t test to determine if the group's average IQ is significantly higher than the average IQ of the general population. The population mean is 100, but the population standard deviation is unknown. Ho: The average IQ of the group of senior citizens is less than or equal to the population average IQ. Ha: The average IQ of the group of senior citizens is significantly higher than the population average IQ. Descriptive Statistics Question 1: Which kind of t-test should be used in this situation? One-Sample Independent Standard N Mean deviation Question 2: Does the hypothesis call for a one-tailed test or a 36 103.83 9.337 two-tailed test? One-Tailed Two-Tailed t Test Question 3: How many degrees of freedom are in the problem? p Mean Type Answer difference Question 4: According to the p value, is this result statistically significant at the .01 level? 2.463 .0098 3.833 Yes No Submit