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one floor of a dollhouse is 1.6 feet tall. the dollhouse contains two levels of living areas and an attic for a total of 2.5 floors.
jaime estimates the height of the dollhouse by computing 2x 3. how does her estimate compare to the actual height of the
dollhouse?
her estimate is greater than the actual height because both factors were rounded up.
her estimate is less than the actual height because both factors were rended up.
her estimate is greater than the actual height because both factors were rounded down,
her estimate is less than the actual height because both factors were rounded down.
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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.