Mathematics, 27.03.2020 03:14 hdkdkdbx
A scientist who studies teenage behavior was interested in determining if teenagers spend more time playing computer games then they did in the 1990s. In 1990s, the average amount of time spent playing computer games was 10.2 hours per week. Is the amount of time greater than that for this year? Ten students were surveyed and asked how many hours they spent playing video games. The test statistics is equal to 0.45.
What is the p-value?
greater than 0.10
between 0.010 and 0.025
less than 0.001
between 0.001 and 0.005
between 0.005 and 0.010
between 0.025 and 0.05
between 0.05 and 0.10
Answers: 1
Mathematics, 21.06.2019 16:00
Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply
Answers: 2
Mathematics, 21.06.2019 18:30
You receive 15% of the profit from a car wash how much money do you receive from a profit of 300
Answers: 2
Mathematics, 21.06.2019 22:10
Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.
Answers: 2
A scientist who studies teenage behavior was interested in determining if teenagers spend more time...
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