Use the data set ColdDrug.sav for the next two questions. A…

Use the data set ColdDrug.sav for the next two questions. A drug company created a new drug that is supposed to prevent colds. To test if the drug is effective, they paid 30 participants to be part of the study, and randomly assigned them to one of three groups: (1) High dose, (2) Low dose, and (3) Placebo condition (no active ingredients). The participants reported the number of colds they had over 6 months. Was this new drug effective at preventing colds? Run a statistical test on the data to evaluate this question.  Upload your output file showing this test.

Jamie Nelson works for a telephone company. She is intereste…

Jamie Nelson works for a telephone company. She is interested in determining the satisfaction of customers with the service provided by the company (for landline customers only). She decides to collect data from eligible customers listed in the company’s existing customer directory. In this scenario, the customer directory serves as a(n) _________blank.

Use the data set smoker.sav to answer the final three questi…

Use the data set smoker.sav to answer the final three questions. A researcher is interested in whether regularly smoking marijuana would affect digit-span recall, which is a measure of short-term memory. The researcher first found two groups of participants (‘smoke_group’): (1) nonsmokers and (2) smokers. Each group was given a digit-span test, and the number of digits recalled is listed in the ‘digit_span’ column in the Data View. A higher digit-span score implies a better short-term memory.