Mathematics, 15.06.2020 22:57 nina288
One study revealed that a child under the age of 10 watches television 4.5 hours per day. A group of families from a certain comunity would like to beleive that theri children watch television less than the national average. A random sample of 14 children from the community yielded a mean of 4.1 hours per day with standard deviation of 1.2. Test the appropriate hypothesis at the level of significance 0.01. Assume the viewing time is normally distributed and interpret your results.
Answers: 1
Mathematics, 21.06.2019 19:00
You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?
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Mathematics, 21.06.2019 20:30
Find the value of x. give reasons to justify your solutions! h โ ig
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Mathematics, 21.06.2019 21:00
At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.
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Mathematics, 21.06.2019 22:30
Determine domain and range, largest open interval, and intervals which function is continuous.
Answers: 2
One study revealed that a child under the age of 10 watches television 4.5 hours per day. A group of...
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