Cigarette Tar Content Narrative
Ten measurements of the tar content of a certain brand of cigarette are 13.5, 14.0, 13.9, 14.2, 15.1, 14.6, 13.8, 14.0, 14.1, and 14.7 in milligrams per cigarette. Assume these measurements were taken from a population with a normal distribution.
-One study revealed a child under the age of 10 watches television 4.5 hours per day. A group of families from a certain community would like to believe that their children watch less television than the national average. A random sample of 14 children from the community yielded a mean of 4.1 hours per day with a standard deviation of 1.2. Test the appropriate hypotheses at the 
= 0.01 level. Assume the viewing time is normally distributed and interpret your results.
Definitions:
Q39: Refer to Tool Prices Comparison Narrative. Use
Q43: Refer to Vertical Blinds Installation Narrative. Calculate
Q56: What is the appropriate t critical value
Q66: In a completely randomized design for ANOVA,
Q66: Which of the following would be an
Q68: Refer to Circumference and Age Narrative. Consider
Q84: If all the points in a scatterplot
Q89: Refer to Microwave Sales Narrative. Compute the
Q99: If the correlation coefficient for two variables
Q131: Which of the following is a required