- Is There A Difference Between The Number Of Days A Week People With Curly Hair Wash Their Hair Compared With Those With 1 (492.91 KiB) Viewed 39 times
Is there a difference between the number of days a week people with curly hair wash their hair compared with those with straight hair? The table below shows the results of a survey that asked eight people with curly hair and eight people with straight hair how many days a week they wash their hair. Assume normal distributions and use a 5% level of significance. Curly 2 3 7 2 4 1 3 2 7 Straight 5 4 7 6 7 2 5 a. State the null and alternative hypotheses for the corresponding hypothesis test. b. Write down the test statistic and the p-value. c. Use a complete sentence to state the conclusion of the hypothesis test in the context of the study. d. Find the 95% confidence interval for the difference. e. Use a complete sentence to interpret the above confidence interval. Ln