Mathematics, 27.06.2019 07:30 sethhdoty
Dreaming in black and white a study was conducted to determine the proportion of people who dream in black and white instead of color. among 306 people over the age of 55, 68 dream in black and white, and among 298 people under the age of 25, 13 dream in black and white (based on data from βdo we dream in color? β by eva murzyn, consciousness and cognition, vol. 17, no. 4). we want to 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 of those under 25. a. test the claim using a hypothesis test. b. test the claim by constructing an appropriate confidence interval.
Answers: 3
Mathematics, 21.06.2019 23:30
Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?
Answers: 1
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