In this assignment, you will investigate the relationship between test scores and other variables. First, you will see if the number of hours spent studying for a test affect the test score. Then you will see whether the number of hours slept the night before affect the test score. And finally, you will see if homework scores affect test scores. Once you determine the relationships that may be present, you can compare and interpret the trend lines for those relationships. Based on the description of the scenario, which of the variables is the dependent variable? Along which axis is the dependent variable traditionally plotted?

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.