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chubhunter [2.5K]
3 years ago
10

Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value u

sed to test a null hypothesis.
Mathematics
1 answer:
Ket [755]3 years ago
5 0

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is  z = \pm 1.645

Step-by-step explanation:

From the question we are told that

   The number of observation is greater than 50  i.e. n > 50

   The  level of significance is  \alpha  = 0.1

Generally given that n >  30  then we will make use of the z table  

So  

  From the z table the critical value corresponding to the level of significance level for a two-tailed test is

         z = \pm 1.645

     

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