Determine the most appropriate measure of association to be used for the following pairs of variable: 1.) cost (in pesos) and weight (in kg) of cars (note: bivariate normality assumption is satisfied) 2.) a student's college (eg. CAS, CEAT) and graduating on-time (yes/no) 3.) average temperature (in °C) and average precipitation (in cm) of a city (note: bivariate normality assumption is NOT satisfied) 4.) a smartphone's brand (eg. Samsung) and its battery life (below average/average/above average) 5.) waiting time (in minutes) of a customer in a restaurant and their satisfaction rating (from 1 to 5, 1 being the lowest) Choices: Cramer's V, Spearman's rank correlation coefficient, Pearson's correlation coefficient

Gestation For women, pregnancy lasts about 9 months.In other species of animals, the length of time fromconception to birth varies. Is there any evidence thatthe gestation period is related to the animal’s lifespan?The first scatterplot shows Gestation Period (indays) vs. Life Expectancy (in years) for 18 speciesof mammals. The highlighted point at the far rightrepresents humans. a) For these data, r = 0.54, not a very strong relation-ship. Do you think the association would be stronger or weaker if humans were removed?Explain.b) Is there reasonable justification for removing humansfrom the data set? Explain.c) Here are the scatterplot and regression analysis for the17 nonhuman species. Comment on the strength of theassociation.d) Interpret the slope of the line.e) Some species of monkeys have a life expectancy ofabout 20 years. Estimate the expected gestation periodof one of these monkeys.

Two tools commonly used to test how close the dispersion of data matches the distribution shape of a normal curve are:

Investigation 4: Tempo Differences Between Genres Now we will consider if the difference in the mean tempos between the genres EDM (electronic dance music) and rock is significant. The data set is provided on the blackboard as a .csv file called Tempo4. We are subtracting (EDM – rock) when calculating the difference. Total of EDM Songs: 640              Total of Rock Songs:  512 a) Obtain the value of the observed statistic used to estimate the parameter using StatKey or Rguroo. Upload your data set to either program to obtain your statistic and state the statistic rounded to one decimal place as your answer to this part. b) Define the parameter of interest in context using the symbol(s) and words in one sentence.c) State the null and alternative hypotheses using correct notation. d) Create a bootstrap distribution by following these instructions. In StatKey, go to the middle pane labeled ‘Bootstrap Confidence Interval’ and click CI for Difference in Means. Upload the file in ‘Upload…

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O i. IQR Oj. Variance QUESTION 12 Question 16. (SPEED THRILLS BUT KILLS) The maximum speeds of a sample of five cars under inspection are noted as: 79, 85, 75, 65 and 76 miles per hours. A mechanic calibrated the speeds of the sampled five cars that the new speed should be 1.5 times more than the original speed of each car. Car denote the sample median of speed before and after calibration. Find the ratio: medy medx Let medx and medy QUESTION 13 puestion 3. Table below provides Serum-Cholesterol level (mg/dL) before and after adonting a yegetarian diet fo

"Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here are data on the wrinkle recovery angle (in degrees) for two types of treated fabrics: Permafresh 12 13 15 11 10 16 14 Hylite 14 19 20 16 A manufacturer wants to know how large is the difference in mean wrinkle recovery angle. Give a 98% confidence interval for the difference in mean wrinkle recovery angle: [three decimal accuracy] [three decimal accuracy]

Explain, whether the data can be calculated if the hypergeometric distribution is not known the number of populations?

"Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here are data on the wrinkle recovery angle (in degrees) for two types of treated fabrics: Permafresh Hylite 15 17 12 14 13 16 16 15 14 18 A manufacturer wants to know how large is the difference in mean wrinkle recovery angle. Give a 98% confidence interval for the difference in mean wrinkle recovery angle: [three decimal accuracy] [three decimal accuracy]

What would be the most likely level of measurement for capturing variation in support for the death penalty?  nominal ordinal interval ratio