What percentage would my grade be if I got a 50% on a project that is worth 20% of my grade and my grade is 87%/B+.
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Answer:
(22.0297, 23.3703)
Step-by-step explanation:
Given that an economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California.
Let X be per capita income (in thousands of dollars) for a major city in California.
Mean = 22.7
n = 183
Population std dev = 6.3
Since population std dev is known we can use Z critical value.
Std error =
Z critical =1.44
Marginof error = ±1.44*0.4657=0.6706
Confidence interval 85%
=