You measure 41 textbooks' weights, and find they have a mean weight of 30 ounces. Assume the population standard deviation is 12.3 ounces. Based on this, construct a 93% confidence interval for the true population mean textbook weight. Round z-values to 2 decimal places; round t-values to 3 decimal places. Round final answers to 2 decimal places.

The 93% confidence interval is  

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  41

     The mean is  

     The standard deviation is  

From the question we are told the confidence level is  93% , hence the level of significance is    

=>  

Generally from the normal distribution table the critical value  of   is  

Generally the margin of error is mathematically represented as  

=>    

=>      

Generally 93% confidence interval is mathematically represented as  

=>    

=>    

okay wait before i answer, is this for your points on a graph?