(a) Construct a 95% confidence interval for b2. Show all your work. (b) Test the null hypothesis that there is no relationship between household income and food expenditure, against the alternative hypothesis that there is a relationship. Be sure to do all parts of the hypothesis test. (c) Test the null hypothesis that there is no relationship between household income and food expenditure, against the alternative hypothesis that there is a positive relationship. Be sure to do all parts of the hypothesis test. (d) Which of the above two approaches makes more sense to you as an economist - the alternative hypothesis (and associated rejection region) in part (b), or the alternative hypothesis (and associated rejection region) in part (c)? Why?

A: Let a number x.

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A: 1) The given statement is "20 more than a number n". Convert the given statement into a mathematical…

A: Given information: The level of significance is α = 0.05. The power of the test is 1 – β = 0.9. The…

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A: There are three numbers.The product of two of them is 24, and the sum of all three is also 24. To…

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A: When two chords intersect each other  inside a circle , the product of their segments are equal .

A: The phrases are “a) the product of a number and 12” and “b) ten times a number subtracted from 21”.

A: To find out the correct option.

A: a) 141​b) 1544​c) 2411​d) 34​