Mathematics, 01.12.2021 01:00 batmanmarie2004
HELP PLS!! A study conducted by the Center for Disease Control that asked 15,000 students about their sleep habits showed that about 73% of high school students did not get the required 8 hours of sleep per night. Let p be the proportion of high school students who do not get 8 hours of sleep daily.
1.What is the mean of the sampling distribution of p?
2. Find the standard deviation of the sampling distribution of p. Round to 4 decimal places. ( decimal form pls obvi )
3. Find the probability of selecting a sample of 15,000 students in which between 70% and 75% of the students did not get 8 hours of sleep every day.
Answers: 3
Mathematics, 21.06.2019 20:00
True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1
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Mathematics, 22.06.2019 01:30
A23 – year – old male buys 100/300/100 liability insurance, collision insurance with a $100 deductible, and comprehensive insurance with a $250 deductible? what is his total annual premium? (a) $1142.00 (b) $1765.45 (c) $1770.10 (d) $1785.25
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Mathematics, 22.06.2019 03:00
Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.
Answers: 2
Mathematics, 22.06.2019 03:30
Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the
Answers: 3
HELP PLS!! A study conducted by the Center for Disease Control that asked 15,000 students about thei...
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