Which question is being asked in this story problem? gunther has a collection of stamps and butterflies. he has a total of 80 stamps and butterflies combined. there are 36 butterflies in his collection. how many more stamps than butterflies does gunther have in his collection? a. what is the total number of stamps in gunther's collection? b. gunther has how many more stamps than butterflies? c. what is the total number of stamps and butterflies that gunther has in his collection? d. how many stamps does gunther want to collect? question resources

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.