A group of activists wants to verify the claim that in a certain Fortune 500 company the average salary of female employees is different from the average salary of male employees. Two samples of male and female workers were obtained independently and analyzed. Females (in thousands of dollars): (Note: The average and the standard deviation of the data are respectively 562.62 K and 514.968 K.) Males (in thousands of dollars): 65 50.1 79 70.5 76.5 47.6 43.8 74.1 74.2 45 75.6 56.7 51.8 87.2 71 85 79.4 74.6 68.8 (Note: The average and the standard deviation of the data are respectively $67.15 K and 513.765 K.) The standard deviation for the first sample appears to be different from the standard deviation of the second sample. Use 10% level of significance to decide whether there is sufficient evidence that in the Fortune 500 company, the standard deviation of the salary of males is different from the standard deviation of the salary of females. If normality plots are not provided assume that the samples are from normal populations. Procedure: [Select an answer V ] Assumptions: {select everything that applies) C] The number of positive and negative responses are both greater than 10 for both samples [I Simple random samples III Sample sizes are both greater than 30 C] Population standard deviations are unknown but assumed equal III Normal populations C] Population standard deviation are unknown [:1 Paired samples [I Population standard deviations are known C] Independent samples