Find the critical value Zc necessary to form a confidence interval at the level of confidence c=0.82 what does Zc=

The z-critical values are:

Step-by-step explanation:

The confidence level is, c% = 82%.

The significance level for the two tails are:

Left tailed:

Right tailed:

The z-critical values are:

*Use the z-table.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

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