10.2 practice edited 2

What is the most significant independent variable?  Smoker Age  Blood Pressure

MS pet type = ? MS brew type= ? MS within= ?

Krista wants to compare males and females on number of hours of physical activity done per week. If this is measured as a ratio variable, what test should Krista use to determine if males and females differ on number of hours of physical activity done per week? O chi-square test of independence O ANOVA O paired-samples t test O Independent samples t test

calcium is essential to tree growth because it promotes the formation of wood maintains cell walls. in 1990, the concentration of calcium in precipitation in certain area was 0.11 milligrams per liter (mg/L). A random sample of 10 precipitation dates 2007 results in the following data table. complete parts (a) through (c) below H0 mean= 0.11 Ha mean not =0.11 data table 0.074 0.079 0.073 0.272 0.127 0.189 0.117 0.223 0.305 0.115 b. construct a 98% confidence interval about the sample mean concentration of calcium precipitation  the lower bound  the upper bound

The number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Below is a description of the variables and their levels of measurement  Variables  Student ID - NOMINAL Math Scores - RATIO  Total # of awards - DISCRETE Program Type - NOMINAL (categorical with three levels: (1)general, (2)academic, (3)vocational)   Total Students= 200 Total Awards = 194 Total math scores = 10529 Program Type sum = 405 Summarize in words the frequency distribution for the program type variable.

The best depiction of a population characteristic is a(an): Dependent variable Statistic Independent variable Parameter

Write a brief description on the correlation coefficient for the relationship between bullying by peers and GPA. Bivariate Correlations Among all Variables Variable Community violence exposure Bullying by peers SAT math SAT reading GPA Violence exposure Community violence exposure 0.20 -0.24 -0.14 -0.36 Bullying by peers -0.19 -0.07 -0.25 Academic achievement SAT Mathematics 0.60 0.64 SAT Reading 0.49 GPA For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)

What percent of the variability in the response variable is explained by the explanatory variable? Is the relationship between the two variables significant or not? Show your work.

How to differentiate dependent and independent samples?

Which statistic would best describe the variable diastolic blood pressure (listed in mmHg) in your sample?     Frequency     Median     Mean     Variance

What is the difference between a STATISTIC and PARAMETER

Identify the independent variable and dependent variables."Survival rate of Red Lauan (Shorea negrosensis) and White Lauan (Shorea contorta) using Stinging Nettle (Urtica dioica) Leaf Extract"

Help with y= and cost.

Which bivariate data are most likely positively associated? The height and weight of a person The height above sea level and temperature