Keith tabulated the following values for time spent napping in minutes of six of his friends: 23, 35, 17, 30, 20, and 19. The standard deviation is 7.043 Keith reads that the mean nap is 22 minutes. The t-statistic for a two-sided test would be . Answer choices are rounded to the hundredths place. 1.39 or 1.43 or 2.88 or 0.70

The  t-statistic is

Step-by-step explanation:

From the question we are told that

     The population mean is  

       The standard deviation is  

       The  given data is  23, 35, 17, 30, 20, and 19.

Generally the sample mean is mathematically evaluated as

The t-statistic is mathematically evaluated as

=>  

=>  

step-by-step explanation: