Mathematics, 22.06.2019 04:50 iiomqjessica
Emily works as a painter. for each job, it takesher 30 minutes to prepare an interior wall ofa house before she paints and 2 minutes persquare yard to paint that will. the graph belowshows the total time it would take her to do a job, based on the total area of the wallhow long does it take her to do a job when she paints a wall with an area of 15 square yards?
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Mathematics, 21.06.2019 19:00
Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective
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Mathematics, 21.06.2019 21:30
Plz ( true - false) all triangles have interior angles whose measure sum to 90.
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Mathematics, 21.06.2019 22:10
Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9
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Mathematics, 22.06.2019 02:30
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3
Emily works as a painter. for each job, it takesher 30 minutes to prepare an interior wall ofa house...
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