Aresearch center reports on a survey taken in which they asked whether respondents have heard "good news" about the job market. they compared those making $ 30,000 or less per year with those making between $ 31,000 and $ 74,000. we'll label the population of those making less than $ 30,000 as population 1 (low income), and those making between $ 31000 and $ 74000 as population 2 (middle income). a 99% confidence interval for the difference in proportions, 1 (low) minus 2 (middle) is (- 0.02, 0.09 ). interpret this confidence interval. if the interval contains 0, indicate what this means. explain the meaning of positive and/or negative values.

answer: a and b

step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.