Find the value za/2 needed to constrict a confident interval with level 87%

The value za/2 needed to constrict a confident interval with level 87% is 1.51

Step-by-step explanation:

At 87% confidence level the z is ,  

α= 1 - 87%

  = 1 - 0.87

   = 0.13

α/ 2 = 0.13 / 2

        = 0.065

Zα/2 = Z0.065

        = 1.51 ( Using z table )

d

step-by-step explanation:

d

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05