Susan is conducting a survey about the electric bills of households in her city. From the electric company, she found that the population mean is $98.75 with a standard deviation of $10.45. Susan has a sample size of 60.
Complete the equation that Susan can use to find the interval in which she can be 68% sure that the sample mean will lle.
98.75
7.75
109.2
88.3
10.45
60