Mathematics, 28.06.2019 09:30, keshho
From 74 of its restaurants, noodles & company managers collected data on per-person sales and the percent of sales due to "potstickers" (a popular food item). both numerical variables failed tests for normality, so they tried a chi-square test. each variable was converted into ordinal categories (low, medium, high) using cutoff points that produced roughly equal group sizes. at α = .05, is per-person spending independent of percent of sales from potstickers? potsticker % of sales per person spending low medium high row total low 14 6 3 23 medium 7 16 5 28 high 3 4 16 23 col total 24 26 24 74 click here for the excel data file (a) the hypothesis for the given issue is h0: percentage of sales and per-person spending are independent. yes no (b) calculate the chi-square test statistic, degrees of freedom, and the p-value. (round your test statistic value to 2 decimal places and p-value to 4 decimal places. leave no cells blank - be certain to enter "0" wherever required.) test statistic d. f. p-value (c) we reject the null and find dependence. yes no
Answers: 3
Mathematics, 21.06.2019 22:00, prelogical
Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?
Answers: 1
Mathematics, 21.06.2019 22:00, deannajd03
Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis
Answers: 1
Mathematics, 21.06.2019 22:30, lekepius3715
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
From 74 of its restaurants, noodles & company managers collected data on per-person sales and t...
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