The mortality rate from melanoma (skin cancer) during the 1950s was recorded for each of the48 contiguous United States, plus Washington, D.C. (as reported by Fisher and Van Belle(1993) and found at http://www.stat.psu.edu/~lsimon/stat501wc/sp05/data/The following is the scatterplot of the data:Mortality per 10 million225200175150125100-3035Scatter plot40Latituder=-.834550The plot shows a negative linear relationship between the latitude of the state and melanoma mortality rate.Which of the following is an appropriate interpretation of the negative relationship shown in the scatterplot above?A. O The more southern the state, the more people that died of melanoma.B. O The more southern the state, the higher the melanoma death rate.C. The more northern the state, the higher the melanoma death rate.

A scatterplot for the latitude of the state and melanoma mortality rate is given.

Answered: The mortality rate from melanoma (skin…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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5. Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 369 social network users were asked which site they primarily visited. These data are presented in the following table along with each person's age group. Complete parts a. through c. below. 1 Click the icon to view the data table. a. Using a = 0.025, perform a chi-square test to determine if age group and social networking site used are independent of one another. Identify the null and alternative hypotheses for a chi-square test of independence based on the information in the table. Choose the correct answer below. O A. Ho: Age group and social networking site are independent of one another. H: Age group and social networking site are not independent of one another. O B. Ho: Age group and social networking site are independent of one another. H,: The age group affects the social networking site. OC. Ho: Age…
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