Mathematics, 18.02.2020 05:24, eliezer25
One reason for using a t distribution instead of the standard Normal curve to find critical values when calculating a level C confidence interval for a population mean is that
(a) z can be used only for large samples.
(b) z requires that you know the population standard deviation σ.
(c) z requires that you can regard your data as an SRS from the population.
(d) z requires that the sample size is at most 10% of the population size.
(e) a z critical value will lead to a wider interval than a t critical value.
Answers: 3
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Jenny invests $2,000 at an interest rate of 5%. the amount of money, me, in jenny's account after tyears can be represented using the equation ma-2000(1.05). if jenny would have invested the same amount of money at the same interest rate four years ago, the equation representing the amount of money mo. in her account would be represented using the equation! mg = 2000(105)*** which of the following is equivalent to mp? 2000(105) om- 1.05 2000(1.05) mo 1059 mp-2000(1.05) (105) mp - 2000(1.05) + (1.05)
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Quickly multiply and simplify polynomials (x – 4) (x^2 – 5x – 6)
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One reason for using a t distribution instead of the standard Normal curve to find critical values w...
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