Acetic acid is the active ingredient in vinegar. It consists of 40.00% C, 6.714% H, and 53.29% O. What is the empirical formula of acetic acid? Test pack

Write a complete, balanced equation for the reaction that occurs when sodium metal reacts with water to form hydrogen gas and aqueous sodium hydroxide. Test pack

A 5.05 g sample of quartz (SiO2) contains 2.36 g of silicon. What are the percentages of silicon and oxygen in quartz?  Test pack

If 50.0 mL of 0.235 MNaCl solution is diluted to 200.0 mL, what is the concentration of the diluted solution?

Which of the following is NOT a characteristic of correlation, r?

What is multicollinearity? 

Listed below is the multiple regression equation for predicting Y by X1 through X4. Y = Sales per month X1= Amount spent on printed ads X2= Amount spent on text messages X3= Amount spent on radio ads X4= Amount spent on customer service support   There are a total of n=50 observations used in the analysis.   Y-hat =  12.34 + 1.55 X1 + 0.22 X2 +1.45 X3 + 0.612 X4   The F test statistic equals 2.1. What is the p-value for the overall F test? Round to three decimal places. 

An economist wanted to predict GDP based on various other economic variables. They decided to conduct a multiple linear regression with predictor variables. They took a sample size of countries. Using the ANOVA table below, find the degrees of freedom for error.   Source DF Sum of Squares Mean Square F Ratio model error total

A sociologist wants to predict the birth weight(ounces) of babies based on the weight of the mother and if the mother smoked (0 if non-smoker and 1 if a smoker).  She used data from the San Francisco Bay area that included 1,236 mothers from 1960 – 1967.   Interpret “-8.67”.  

Which of the following is the most accurate statement about the legal challenges faced by multinational corporations when engaging in international business transactions?