please look over the questions and match the statistical test to the correlating word problem . Ignore the letters on the blank space before the number problem.

Part 1 (48 pts) a 4. Suppose that the average life expectancy for individuals born and raised in the US over the last 100 years, based on national death records, is 85.4 years with Questions 1 thru 8: Read the scenario and determine which statistical test is most appropriate. standard deviation o = 12 years. A hospital in Germany calculates the average Write the letter that corresponds to the test in the space provided. (4 pts each) age of the patients who died at their facility during the last 3 months (M=87.3 years). Which test would they need to use to determine if the German life a. Z-test d. Independent=Samples t-test 9. Correlation b. Single-Sample t-test e. One Way ANOVA h. Regression expectancy differs from the US life expectancy? c Related-Samples t-test f. Two-Way ANOVA 5 . Many students are concerned about "The Freshman 15", which is the idea that college students gain a significant amount of weight during their first year of 1. A researcher suggests that the more frequently individuals send text messages, college. To determine if this actually occurs, a college weighs the incoming the more manual dexterity they are likely to have. The phrase manual dexterity freshman class during orientation, and then again at the end of their first year. refers to how well you can accomplish tasks using your hands and arms. To test The mean change in weight for the sample was an increase of 20.5 lbs (SD = 4.5). this idea, they recruit 100 participants. Participants track the number of text Which statistical test should they use to determine if there was a significant messages that they send over a one week period. At the end of the week period, change in weight over the course of the year? they complete a task that measures their dexterity. At the end of the study, each person has two scores: (1) the number of text messages they sent during 6. A researcher examines stress levels among spouses of those suffering from the week, and (2) a numerical value (that can be between 1 and 10) that cancer. They recruit 100 participants. Each completes a stress inventory. The represents their dexterity level. Which test should the researcher use to lowest possible score on the stress measure is 0 and the highest possible score is determine if there is a relationship between the two variables? 50. A score of 35 or higher is considered a high level of stress. The sample yielded an mean stress score of 39, with a sample standard deviation of S = 5. 2. An individual wishes to buy a new house. As part of their decision making Which statistical test would they need to use to determine if the sample process, they want to compare the housing costs among nearby cities. They average? exceeded the cutoff of 35 and is considered to have a high level of stress, on search Realtor.com for all houses for sale in Holyoke, Easthampton, South Hadley, and West Springfield that are between 1600 and 2200 square feet in size. The mean price for houses in Holyoke was $212,000, (SD - $36,000). The 7. A researcher conducts a study to explore whether there are differences in mean price for houses in Easthampton was $255,000 (SD = 35,000). The mean marital satisfaction based on (1) whether or not they lived together prior to price of houses in South Hadley was $245,000 (SD = $40,000). The mean price marriage, and (2) how long people dated before marriage. Dating time was split for houses in West Springfield was $200,000 (SD = $30,000). Which statistical into 3 categories: 1 year or less, 1 to 3 years, or more than 3 years. The test should they use to determine if the average price of 4 bedroom houses researcher is interested in knowing if there are main effects of either dating differs across the four cities? time or living together before marriage, but they are especially interested to know if the effect of living together on marital satisfaction differs based on how 3. One-hundred young adults are recruited for the study; fifty participants are only appropriate? ong the pair had dated before marriage. Which statistical test is most children and the other 50 participants have at least one sibling. Each participant completes a personality inventory that measures extraversion. Each participant gets a score between 1 (not at all extraverted) and 7 (very extraverted) on the 8. A researcher wishes to know if a person's annual income can be used to predict questionnaire. The mean extraversion score is 4.75 (SD = 1.32) for only children, the total amount of debt that they have. The researcher gathers data from 300 and 5.35 (SD = 1.43) for children with siblings. Which statistical test should the individuals. The researcher knows the total amount of income each participant researcher use to compare the two groups, and determine if only children and received during the prior 12 months, as well as the total amount of debt for children with siblings differ on their level of extraversion? each participant in the study. Which statistical test should they use to determine if annual income predicts debt