Student: Statistical Studies: Statistical Investigations Class: Date: III.A Student Activity Sheet 1: Overview of Purpose, Design, and Studies For Questions 10 and 11, practice writing hypotheses. Write them in words and then convert hypotheses. them to symbols. Finally, sketch or outline a simple study design that might help study the 10. A local pizza shop advertises "an average delivery time of 20 minutes or less," but it does not offer a guarantee such as a free pizza. The national manager, Su Lin, wonders if her employees are fulfilling the claim. 11. James believes that his mother's houseplants would grow taller if she watered with rainwater instead of tap water. Not all studies lend themselves to hypothesis writing. For example, if Giancarlo is interested in cars, he might want to collect information about the most popular type of c among teenagers, the most popu color, or prices of various model He would not design a study tha tests a hypothesis. He could w and test hypotheses, however wanted to know whether or n advertising for the gas mileas certain model is true. REFLECTION: Recall the potato chip hypotheses: . Ho: M2 28.3 grams, where u is the true mean weight of a bag of Spud Pot . Ha: M