Ten years ago 53% of american families owned stocks or stock funds. sample data collected by the investment company institute indicates that the percentage is now 46% (the wall street journal, october 5, 2012). a. develop appropriate hypotheses such that rejection of h0 will support the conclusion that a smaller proportion of american families own stocks or stock funds in 2012 than ten years ago. h0 : μ ha : μ b. assume the investment company institute sampled 300 american families to estimate that the percent owning stocks or stock funds was 46% in 2012. what is the p-value for your hypothesis test (to 4 decimals)? c. at α=.01, what is your conclusion? p-value .01, h 0. we that there is in the proportion of american families owning stock.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

step-by-step explanation:

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step-by-step explanation:

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