3 years ago

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

Mathematics

1 answer:

Vikki [24]3 years ago

5 0

Answer:

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 )

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