My most recent tutoring experience was tutoring for Pleasanton unified school district as a paid peer tutor. I tutored in a variety of subjects, such as math, physics, biology, and history. I'm currently an incoming freshman at UCLA.
Discuss the differences between statistics as numerical facts and statistics as a disciplineor field of study.
Refer to Table 1.6 .a. What is the average miles per gallon for city driving?b. On average, how much higher is the miles per gallon for highway driving as comparedto city driving?c. What percentage of the cars have four-cylinder engines?d. What percentage of the cars use regular fuel?
Consider the data set in Table $1.7 .$a. Compute the average endowment for the sample.b. Compute the average percentage of applicants admitted.c. What percentage of the schools have NCAA Division III varsity teams?d. What percentage of the schools have a City: Midsiue campus setting?
The Ritz-Carlton Hotel used a customer opinion questionnaire to obtain performance data about its dining and entertainment services (The Ritz-Carlton Hotel, Naples, Florida, February 2006 ). Customers were asked to rate six factors: Welcome, Service, Food, Menu Appeal, Atmosphere, and Overall Experience. Data were recorded for each factor, with I for Fair, 2 for Average, 3 for Good, and 4 for Excellent.a. The customer responses provided data for six variables. Are the variables categonical or quantitative?b. What measurement scale is used?
The Hawaii Visitors Bureau collects data onvisitons to Haw aii. The following questionswereamong 16 asked in a questionnaire handed out to passengers during incoming airline flights.* This trip to Hawaii is my: 1 st, 2 nd, $3 \mathrm{rd},$ 4th, etc.* The primary reason for this trip is: $(10$ categories, including vacation, convention,honeymoon)* Where I plan to stay: $(11$ categories, including hotel, apartment, relatives, camping)Total days in Hawaiia. What is the population being studied?b. Is the use of a questionnaire a good way to reach the population of passengers onincoming airline flights?c. Comment on each of the four questions in terms of whether it will provide categori-cal or quantitative data.
Figure 1.11 provides a bar chart showing the amount of federal spending for the years 2004to 2010 (Congressional Budget Office website, May $15,2011 ) .$a. What is the variable of interest?b. Are the data categorical or quantitative?c. Are the data time series or cross-sectional?d. Comment on the trend in federal spending over time.
