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Which of the following gives a reason it's important to obtain a random sample when conducting research? 0 a) It's important for the researcher not to be involved in the data collection process. By using a random sample, anyone could collect the data. 0 b) Random samples helps obscure important results. 0 c) Random samples are better because those being sampled are more likely to respond. 0 d) A random sample helps to ensure that the limited-sized sample is representative of the whole population. Suppose you estimate a simple regression where the dependent variable is the number of auto accidents in a day in Georgia. The number of drivers cited for driving while intoxicated (DWI) is the only independent variable. You obtain the following regression equation using MS Excel: ACCIDENTS = 155 + 15.1 * DWI. What is the estimated number of ACCIDENTS for a day where 230 DWI citations were issued? (Round your nal answer to the rst place to the right of the decimal, e.g., 23.4) Your Answer: Use the following information about waffles to select a response: HO: u=330 HA: u#330 According to corporate headquarters, a plain waffle served at Waffle House is supposed to contain 330 calories, with a population standard deviation of 50 calories. The food sciences program from UWG obtained a sample of 36 waffles and found an average of 300 calories per waffle. Using a two-tailed test and a significance level of .05 (or 5%), can the null hypothesis be rejected? a) The Null Hypothesis is Rejected b) The Null Hypothesis is NOT Rejected O c) There isn't enough information to decide