9:24 PM Fri Nov 18

9:24 PM Fri Nov 18 < Quiz 4 - make-up Home Times New Roman 88% 0 Insert Draw Layout Review View Open Response: Read each question carefully and respond in the space provided. 6. In 2002, the National Center for Health Statistics reported that 75% of children ages 2 to 17 saw a dentist within the past year. An investigator wants to assess whether the use of dental services is lower for children that live in neighborhoods characterized by a low socioeconomic status (SES). A sample of 125 children living in low SES neighborhoods was surveyed and 60.8% of those surveyed reported seeing a dentist over the past 12 months. A hypothesis test was conducted at a 5% significance level to determine whether the proportion of children living in low SES neighborhoods and receiving dental care is lower than the national proportion. a. b. c. d. e. f. g. Is this outcome variable considered to be continuous or dichotomous? Set up the appropriate null and alternative hypotheses for this study. Should a z or t test statistic be used for this hypothesis test? and/or show pour work. Write out the decision rule for this hypothesis test. Make sure to include the appropriate z or t critical value. Compute the appropriate test statistic for this hypothesis test. Make a decision using the decision rule in (d) and write out an appropriate conclusion. Do you expect the p-value for this test to be above or below the significance level of 0.05? Explain.