PSYC 3002 Walden University

PSYC 3002 Week 6 Test – Question and Answers If you are conducting a one-way chi-square for a study with 300 participants and 3 categories, what would the expected frequency be for a given category? An analysis of home addresses of the people enrolled in your program of study showed that 565 people live in large cities, 410 live in small towns, and 110 live in rural areas. What statistic should be use to analyze these data? A goodness of fit test has how many variables? A researcher used...

PSYC 3002 Week 2 Quiz – Question and Answers The following is a list of temperatures for the month of January: 9, 8, 8, 7, 4, 4, 3. If the temperature of 9 degrees is changed to 45, what will happen to the mean? Suppose you have a set of normally distributed data where the mean is 120 and the standard deviation is 15. What score is located at -2 standard deviations? ______________ distributions contain more lower scores than higher scores. The advantage of the range is that The main advantage...

PSYC 3002 Week 1 Statistics Test – Question and Answers Sarah learns that her 3-year-old scored as well as or better than half of the children in Pam’s language development study. Sarah’s child scored at the _________ percentile. Pam is studying speech development in 3-year-olds in daycare. She observes 30 children over two weeks and takes note of various aspects of the children’s speech. What is the population in this study? Pam wants to know if a new vocabulary intervention increa...