Mathematics, 22.05.2020 02:07 hailekelly1864
A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 293 people over the age of 55, 60 dream in black and white, and among 289 people under the age of 25, 20 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below.(a) Test the claim using a hypothesis test.(b) Test the claim by constructing an appropriate confidence interval.(c) An explanation given for the results is that those over the age of 55 grew up exposed to media that was mostly displayed in black and white. Can the results from part (a) and (b) be used to verify that explanation?
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Mathematics, 21.06.2019 20:00
Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?
Answers: 2
Mathematics, 22.06.2019 04:30
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year?
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Mathematics, 22.06.2019 04:30
The function c(n) below relates the number of bushels of apples picked at a pick-your-own orchard to the final cost for the apples. it takes as input the number of bushels of apples picked after paying an entry fee to an orchard and returns as output and returns as output the cost of the apples (in dollars)c(n) = 15n + 30which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels picked as output
Answers: 1
A study was conducted to determine the proportion of people who dream in black and white instead of...
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