Mathematics, 27.08.2019 19:20 sajawalkhan148
Acredit reporting agency claims that the mean credit card debt in a town is greater than $3500. a random sample of the credit card debt of 20 residents in that town has a mean credit card debt of $3600 and a standard deviation of $391. at α=0.10, can the credit agency’s claim be supported, assuming this is a normally distributed data set?
Answers: 2
Mathematics, 21.06.2019 14:00
Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.
Answers: 1
Mathematics, 21.06.2019 19:30
Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?
Answers: 2
Mathematics, 21.06.2019 20:00
M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)
Answers: 3
Acredit reporting agency claims that the mean credit card debt in a town is greater than $3500. a ra...
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