A researcher wishes to compare the proportion of marijuana usage among students using usage categories low, medium, and high. She wants to determine if usage is related to parents' income, using categories low, medium, and high. She will analyze this data using the chi-square test. the two-sample procedures for proportions. the two-sample \( t \) test procedure. ANOVA.

What is the standard deviation of this data set? Use a calculator to help you. Round your answer to the nearest tenth. \( 11,16,22,28,29,30,31,34,37,38,43,49,56,78,99 \) \( \begin{array}{l}\text { A. } 29.3 \\ \text { B. } 23.2 \\ \text { C. } 27.5 \\ \text { D. } 25.9\end{array} \)

Nonparametric Measures of Correlation Using the datasetlab04 file on Brightspace, run a crosstabulation with the appropriate nonparametric correlation coefficient for the following scenarios: Scenario 1 Determine the relationship between gender (IV = sex) and political party affiliation (DV = partyid) (partyid is measured ranging from 0 for strong democrat to 6 strong republican). Run crosstabulation with a gamma correlation coefficient: Interpretation:

Para los siguientes planteamientos, calcula el tamaño de muestra que se necesitaria analizar, de acuerdo a la población correspondiente y las condiciones establecidas. a) Se va a realizar un estudio para analizar la cantidad de basura que las per- sonas reciclan en sus casas semanalmente. La población es una escuela con 12.345 integrantes. Se requiere un nivel de confianza del \( 90 \% \) y se estima un error del \( 3 \% \).

SECTION a ony ? For a positively skewed distribution, median is always less than the Pie chart is a graph of Geometric mean for the data \( 6,3,1,0,2 \) is The graph of Grouped frequency distribution is called If the mean is 5 and the mode is 5 of a symmetrical frequency distribution, then the median

a. Construye una tabla de frecuencias de los datos recolectados. b. Representa gráficamente el conjunto de datos, en diagrama circular y diagrama de barras. c. Encuentra la moda. d. Si la secretaria debe elaborar un informe para el gerente. ranéconclusiones dehe incluir?