With customers using lines at its various cashiers, a store finds that the standard deviation for normally distributed waiting times for customers on Friday afternoon is 6.1 minutes. The customers however believe otherwise that the standard deviation is a lot more. A zealous consumer advocate conducts a random sample of 22 customers and finds that the waiting times for customers have a standard deviation of 8.9 minutes. With a significance level of 5%, conduct a hypothesis test on whether the waiting times for customers have a standard deviation of more than 6.1 minutes. What are the null and alternative hypotheses? H0: 2 = 6.12 Ha: 2 6.12 H0: 2 < 6.12 Ha: 2 = 6.12 H0: 2 = 6.12 Ha: 2 > 6.12 H0: = 6.1 Ha: > 6.1 H0: 2 > 6.12 Ha: 2 = 6.12 State your conclusion. At a 5% level of significance, from the data collected, there is insufficient evidence to conclude that the waiting times for customers have a lower standard deviation than 6.1 minutes. At a 5% level of significance, from the data collected, there is sufficient evidence to conclude that the waiting times for customers have a higher standard deviation than 6.1 minutes. At a 5% level of significance, from the data collected, there is insufficient evidence to conclude that the waiting times for customers have a higher standard deviation than 6.1 minutes. At a 5% level of significance, from the data collected, there is sufficient evidence to conclude that the waiting times for customers have a lower sta