A researcher wants to investigate the changing roles of working mothers and the pressures they and their children face. The researcher observes the behaviors of 12 four year-old children in a day care setting for 6 to 8 hours per week for 10 months. The mothers are observed as they drop off and pick up their children. The mothers and the day care workers are interviewed. The researcher discovers several recurrent themes in the observations and interviews. Independent variable (construct): Levels (operational def):            Organismic/Manipulated:            B/W or W/I: Dependent variable (Construct & Operational def): Type of Hypothesis: Type of Statistic: Research Design:

As you read about each​ study, (a) classify the type of research that it​ reflects, and​ (b) identify the kinds of conclusions that might reasonably be drawn from the results. During their​ 8th- and​ 11th-grade school​ years, students in the Ranger School District take standardized achievement tests designed to assess their language and math skills. The superintendent receives a report showing how Ranger students compare with those in many other school districts across the nation. The superintendent discusses the results with the school principals. ​(a) Classify the research as one of the​ following:   ​Quantitative/descriptive   ​Quantitative/correlational   ​Quantitative/experimental   ​Quantitative/quasi-experimental   Qualitative   Mixed​ methods, and then ​(b) Identify one or more conclusions that might reasonably be drawn from this study​ and, if​ relevant, one or more conclusions that cannot be drawn from the study

The St. Lucian Government is interested in predicting the number of weekly riders on the public buses using the following variables: Price of bus trips per week The population in the city The monthly income of riders Average rate to park your personal vehicle           City Number of weekly riders Price per week Population of city Monthly income of riders Average parking rates per month 1 192,000 $15 1,800,000 $5,800 $50 2 190,400 $15 1,790,000 $6,200 $50 3 191,200 $15 1,780,000 $6,400 $60 4 177,600 $25 1,778,000 $6,500 $60 5 176,800 $25 1,750,000 $6,550 $60 6 178,400 $25 1,740,000 $6,580 $70 7 180,800 $25 1,725,000 $8,200 $75 8 175,200 $30 1,725,000 $8,600 $75 9 174,400 $30 1,720,000 $8,800 $75 10 173,920 $30 1,705,000 $9,200 $80 11 172,800 $30 1,710,000 $9,630 $80   12 163,200 $40 1,700,000 $10,570…

Seedlings of an annual plant were split into two equal treatment groups; in one group, extra fertilizer was provided, and in the other group (the control group), no additional fertilizer was added. The numbers of seeds and the average weight of the seeds from each individual plant were monitored, and these data were plotted (each point represents an individual plant). Which statement best describes the results of this study? Control With fertilizer 450 400 400 350 350 300 300 250 250 200 200 130 130 100 100 50 50 10 20 30 40 50 70 10 20 30 40 50 Number of seeds Number of seeds O A. Trade-offs between seed size and seed number exist in both the control and the fertilizer groups, and these trade-offs are of roughly equal magnitude. B. Trade-offs between seed size and seed number exist in both the control and the fertilizer groups, but these trade-offs are much larger in the fertilizer group. C.A trade-off between seed size and seed number exists in the control group but not in the…

Some research situations are summarized below. For each situation, identify all variables.Then, for each variable, note the level of measurement AND whether it is an independent or dependent variable.         a.Ahealth researcher is interested in studying patient compliance (whether or not patients take the medicine their doctor prescribes). She surveys 800 diabetic patients, and finds compliance to be linked to patient age, education, gender, and socioeconomic status. b. A market researcher is hired by Target to see how customers buying habits have changed before and after COVID.  The researcher studies how much each customer spent (in $s), how frequently they visited the website each month, how frequently they visited the store each month.  They report that, since March, customers are spending less, visiting the website more frequently, and shopping in person less frequently.

The business problem facing the director of broadcasting operations for a television station was the issue of standby hours (i.e. hours in which unionized graphic artists at the station are paid but are not actually involved in any activity) and what factors were related to standby hours. A study of standby hours was conducted for 26 weeks. The variables in the study are described below and the data from the study are shown in the accompanying table. Complete parts a throughg below. Standby hours (Y)-Total number of standby hours in a week Total staff present (X,)-Weekly total of people-days Remote hours (X,)-Number of hours worked by employees off-site E Click the icon to view the data table. Standby hours a. State the multiple regression equation. Standby Hours (Y) Present (X,) Hours (X2) 247 Total Staff Remote Ý, =- 328.6 + (1.8) x, + (- 328.6)X (Round to one decimal place as needed.) 338 333 358 372 337 414 177 600 656 269 211 631 196 135 195 118 116 147 528 289 419 334 382 293 399…

If there is an interaction between the variables of “activity level” and “time of day,” this means that activity level does not have the same effect at different times of day. Group of answer choices True False

You're a data analyst for an insurance company. You want to make sure that your employer is not over-paying for car repairs. To investigate this, you bring 31 different cars to two different garages, Bubba's Hubcap Heaven and Repair, and Merle's Motor Shop. Some of the cars need lots of repairs. Some of the cars need very few. By taking each car to both shops, we can directly compare the two sets of prices.  The dataset is in an Excel file named "Bubba_v_Merle_3190.xls", which you can find in the "Data" folder under Course Documents. Before running your analysis, be sure to look at the data file and verify that each car requires a different amount of repairs, and that prices in one shop are correlated with prices at the other shop. That is, they're in the same ballpark. The question is whether one tends to charge more, on average, than the other. Your task is to use Excel to test the research hypothesis that prices are different in the two shops; the null hypothesis is that prices are…