4) / 24 points ) Long-term records from the Serengeti National Park in Tanzania show interesting...
lanta t: Distance Fare Baltimore Boston Dallas Denver 568 933 720 1190 219 400 350 300 r 250 200 e 150 308 683 141 Miami 589 327 183 209 199 New Orleans NY Okla Cit Orlando Philadelpha St Louis Salt Lake Scattle 419 200 600 1000 1 400 1800 49 392 657 461 1565 301 238 205 dist . Find r 2. Explain what rmeans in this context. Summary Statistics Mean853.7 244.33 Correlation 0.694 . Find the slope of the...
Problem 1 Please do not use any type of software to solve this problem; perform all the calculations and draw the charts by hand. You can use your calculator only for simple operations like addition, multiplication, finding averages and standard deviations. The owner of an apartment complex with three-bedroom units is trying to determine what rent he should set for the summer months. He believes that the rent of an apartment in his complex determines if it will be occupied...
Bivariate Fit of NONFOOD PURCHASES By AGE 90 80 70 60 50 40 30 20 20 30 40 50 60 AGE -Linear Fit Linear Fit NONFOOD_PURCHASES = 12.956633 0.8136836 AGE Summary of Fit RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.33852 0.336478 11.54086 39.1842 326 Lack Of Fit Analysis of Variance Sum of Source DF Squares Mean Square F Ratio 22084.6 165.8106 133.2 Prob > F .00011 Model 1 22084.562 Error 324 43154.032...
The scatterplot below shows Olympic gold medal performances in the long jump from 1900 to 1988. The long jump is measured in meters. 9.0 8.8 8.6 8.4 E 8.2 8.0 7.8 -7,6 7.4 0 7.21o 7.0 0 20 40 60 8100 120 Year since 1900 Here is the equation of the least squares regression line Predicted long jump 7.24 + 0.014* year since 1900. What does the vertical-intercept (aka. y-intercept) tell us? 7.24 meters is the predicted value for the...
How much alcohol can one consume before one's Blood Alcohol Content (BAC) is above the legal limit? An experiment was conducted at Gallaudet University to predict Blood Alcohol Content from the number of beers. A total of 50 volunteer college students (some men and some women) were assigned a certain number of beers to drink and then, after a half an hour, their Blood Alcohol (BAC) level was measured. To make this assignment simpler, we will only use the first...
How much alcohol can one consume before one's Blood Alcohol Content (BAC) is above the legal limit? An experiment was conducted at Gallaudet University to predict Blood Alcohol Content from the number of beers. A total of 50 volunteer college students (some men and some women) were assigned a certain number of beers to drink and then, after a half an hour, their Blood Alcohol (BAC) level was measured. To make this assignment simpler, we will only use the first...
Erika Diaz Your name Assignment 10 Correlation, Scatterplot, and Prediction (due 7/30/20 - 1/4/20)(28 pts) 1. A teacher hypothesizes that the more days of school student misses, the worse the student will do on a final exam (possible scores on the exam range from 0 to 20). She obtained a random sample of 12 students. The data are shown below. Student days missed Final exam score 1 3 16 2 2 17 3 5 13 4 8 7 5 4...
2.) The data set named "HW 6.2" contains a random sample of 35 movies released in 2008 collected from the Internet Movie Database (IMDb). The goal of this problem is to explore if the information available soon after a movie's theatrical release can successfully predict total revenue. All dollar amounts (i.e., variables "Budget", "Opening", and "USRevenue") are measured in millions of dollars. . Investigate the relationship between the explanatory variable "Budget" and response variable "USRevenue" by doing the following: a....
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the student spent participating in a GMU club or sport and working for pay outside of GMU was recorded. Values of 0 indicate the students either does not participate in a club or sport or does not work a job for pay. The goal of...
STATS QUESTION PLEASE ONLY ANSWER G, H, and I. I have everything else answered 50 Points Total Percentages of public school students in fourth grade in 1996 and in eighth grade in 2000 who were at or above the proficient level in mathematics were given in the article "Mixed Progress In Math” (USA Today, August 3, 2001). The following data for eight Western states were given: State Arizona (AZ) California (CA) Hawaii (HI) Montana (MT) New Mexico (NM) Oregon (OR)...