ryantrajean7
30.06.2019 •
Mathematics
Z* for 90% confidence is (hint: use z-table c, or software.) answer to three decimal places x.xxx
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Ответ:
We have to find the z critical value at 100% - 90% = 10% level of significance.
Since the normal distribution has two tails, we therefore, need to divide the significance level into two tails with each tail having area of 5%.
Now using the standard normal table, the z critical is:
Ответ:
y=4.5
4+4x=y
x=1/2y−2