Mathematics, 06.12.2019 03:31 bricefitzpatrick0429
Adevelopment economist is studying income growth in a rural area of a developing country. the last census of the population of this area, several years earlier, showed that mean household annual income was 425 dollars, and the variance of household income was 2500 (dollars-squared). a current random sample of 100 households yields a sample mean income of $433.75. assume that household annual incomes are approximately normally distributed, and that the population variance is known still to be 2500. test the null hypothesis that population mean income has not increased against the alternative hypothesis that it has increased, at a 1% level of significance.
what is the form of the rejection region that should be used to conduct this hypothesis test?
Answers: 2
Mathematics, 21.06.2019 18:50
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Abari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely. stock a decreased by m cents per share and stock b increased by n cents per share. which equation can be used to find the total change in value of jabari's shares per month?
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Adevelopment economist is studying income growth in a rural area of a developing country. the last c...
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