Hi!

Can you please help me to solve these two problems attached? Thank you!

MTH 243 - PCC (Trude) LDMEN Name: 16sis off .voters 1p sers mechudue . Module 1 Worksheet odezuon s balesupen zed lionwoo Vis A noploid 1. In performing research for an ecology class, students at a college in upstate New York collect data on streams each year. They randomly select some streams to monitor the health of the local streams, they record a number of biological, chemical, and physical variables, including the stream name, the substrate of the stream (limestone, shale, or mixed), the acidity of the water (pH), the temperature ( C ), and the BCI (a numerical measure of biological diversity). a. The Cases - The respondents, participants, subjects, or experimental units that are being boardto asked or measured.gavar Of ejamsa bris aboutadriaion ofni whip art sbivid, d Ils slamsa bris ;aboothodd on omni vio sdi ably b. The Variables - The characteristics or measurements that are being recorded or measured. Include units whenever the variable is numerical. zeaillo lonuos ylis erlt of janeolo ablorisauod our ert slams .b c. For which variables would we be interested in the value of a mean? bevisser at equong qw ail nige vimobrim enew 10bozib islogid rhiw algoeq 08 , boneq dfrom- 6 1evo .8 ritoa dnoms d. For which variables would we be interested in the value of a proportion? Off osob rigid s .odesslq s navig ezod? herds eTom bevongmi lio dall moil efel-8 agemo to szob igin s novia quong insmissis and editazoo . e. Would these values be parameters or statistics? quona lownoo add saitoze( .d Sbozu rised caposiq s asH .o f. The main research question - The purpose of the data collection. What are researchers trying to figure out? Sosey noed grenild 26H b Sbeau need Inemingjags moonsT and Be more thin theagial to nonslugog eld be nolabionics sis ssilaneg ownedMTH 243 - PCC (Trude) Name: 2. A city council has requested a household survey be conducted in a suburban area of their city. The area is broken into many distinct and unique neighborhoods, some including large homes, some with only apartments, and others a diverse mixture of housing structures. Identify the sampling methods described below, and comment on whether or not you think they would be effective in this setting. a. Randomly sample 50 households from the city. b. Divide the city into neighborhoods, and sample 20 households from each neighborhood. c. Divide the city into neighborhoods, randomly sample 10 neighborhoods, and sample all households from those neighborhoods. n al slashev sill lover. d. Sample the 200 households closest to the city council offices. 3. Over a 4-month period, 30 people with bipolar disorder were randomly split into two groups. 15 received a high dose (10 g/day) of omega 3-fats from fish oil, while the other 15 received a fake supplement. Both the participants and the researchers didn't know who was assigned to which groups. Patients who were given a high dose of omega 3-fats from fish oil improved more than those given a placebo. a. Describe the treatment group b. Describe the control group c. Has a placebo been used? d. Has blinding been used? e. Has random assignment been used? f. Can we generalize the conclusion to the population at large