PSYC 1010 Lecture Notes - Lecture 12: Standard Deviation, Birth Weight, High-Protein Diet

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1010
• Professor: Lana Trick

Document Summary

Always- the sampling distribution of the mean is always normal. When the frequency distribution for the individual scores that the mean was calculated from is normal. When the sample size is 30 or more. When either b or c is true, though not necessarily both! Inferential statistics: taking the probability bridge backwards (sample--> population) Hypothesis testing involves using probability to determine which of two hypotheses about the population you are going to choose as being correct. Experimental treatment (special high protein diet>>this is the special group) Height of the baby at 6 months (measured in cm) There is no relationship between iv and dv. The iv has no effect on the dv in the population. There is a relationship between variables (iv and dv) so the population mean heights would be different (therefore not equal) The alternative hypothesis is not necessarily the same as the experimental hypothesis.