3. A housewife wanted to know which soil is best for her pechay plants: the soil purchasedfrom an online seller, soil from her backyard compost or the soil underneath the nearbybamboo tree. She planted 30 pechay seeds into each soil source and then compared thegrowth of pechay after a month.Independent variable:Dependent variable:Extraneous variable:4. Jenny is only borrowing the cellphone chargers of her brother, sister and mother becauseshe lost her phone charger. All chargers are of the same specifications as hers eventhough they have different phone brands. However, she would like to know which chargerand charging cable combination would fill her phone battery the fastest. She used thefollowing codes as her reference and charged her phone uninterrupted using the followingcombination. The charging time of the phone was then compared.Brother's Charger: BBBrother's Cable: bbSister's Charger: SSSister's Cable: ssMother's Charger: MMMother's Cable: mmCombination ChargingtimeCombination ChargingtimeCombination ChargingtimeMMmmBBbbBBSSBBmmSSssSSbbSSmmIndependent variable:Dependent variable:Extraneous variable:5. A teacher wanted to know which learning delivery modes (pure online, pure modular,combination of online and modular) is most effective and has the fastest turnaround timein the submission of accomplished activities among her Grade 12 students. She dividedthe students into 3 groups, gave them the same activity sheets and asked them to submitas soon as it is completed. She then compared the scores and completion time of the 3groups.Independent variable:Dependent variable:Extraneous variable:

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

Answered: 3. A housewife wanted to know which…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Which of the following about open-source software is true а. A software that can be easily customized. b. A software that does not cost any money for usage. O c. All of these O d. A software that is freely downloadable and available on the internet
Atlantic hurricanes form off the western coast of Africa. As warm moist air rises, it begins to rotate around a low- pressure system. This rotation is sustained by warm ocean temperatures and a central low pressure. Once a sustained wind speed of 74 miles per hour is reached, the storm is considered a hurricane. As man-made climate change continues to increase the temperature of the Earth's oceans, it is expected that the strength of hurricanes will Typically, a lower central pressure within a hurricane's eye is associated with a higher wind speed. Here, statistical software (R/RStudio) will be used to explore this relationship by applying linear regression methods. Using a database of landfalling hurricanes in the United States, a linear regression will be used to correlate the central pressure of each hurricane to its maximum sustained wind speed. increase. Regression Plot y=942.196-0.884*x R^2=0.768 ----- ----------- -. •... •. 980 1000 940 960 900 920 Independent Variable (x)…
The relative effectiveness of two different sales techniques was tested on 12 volunteer housewives. Each housewife was exposed to each sales technique and asked to buy a certain product, the same product in all cases. At the end of each exposure, each housewife rated the technique with a 1 if she felt she would have agreed to buy the product and a 0 if she probably would not have bought the product. Tech 1 2 3 4 1 1 1 2 0 1 1 1 1 0 5 6 7 8 9 10 1 Housewife 0 0 0 0 0 Test Ho: P₁=p₂ versus H₂: P₁ P₂ Use large sample approximations and compare results. 0 0 1 1 1 0 11 12 01 0 1 a) Use Cochran's test b) Rearrange the data and use McNemar's test c) use Fischer exact test d)Ignore the blocking effect in this experiment and treat the data as if 24 difference housewives were used.
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Suppose researchers at an abdominal transplant clinic are concerned about the rate of graft loss due to diabetes status prior to receiving a donor kidney. Research has shown that gender discordance, or receiving a gender from a donor of an opposite gender may increase the risk of both exposure and outcome after transplant. Assume the following tables represent the stratified analysis of the potential confounding variable. (9 points) Gender Discordance Graft Failure No Graft Failure Total Diabetes II 23 10 33 No Diabetes II 4 44 48 Total 27 54 81 Gender Concordance Graft Failure No Graft Failure Total Diabetes II 9 34 43 No Diabetes II 12 87 99 Total 21 121 142 A) Calculate the stratum specific estimates for the odds ratios in each strata. B) Observe the difference in the odds ratios. Based on observation alone, what are we likely to conclude regarding the relationship between outcome and exposure…
Suppose that, as part of a research methods class, Bailey was asked to write a summary of a research paper on the topic of the effects of visitor traffic on the relative humidity in bat caves. Identify the explanatory and the response variables. The number of visitors and the relative humidity are the response variables. The number of visitors is the response variable, and the relative humidity is the explanatory variable. The number of visitors and the relative humidity are the explanatory variables. The number of visitors is the explanatory variable, and the relative humidity is the response variable.
I'm looking at the coefficents between two variables on Excel. Copying and pasting is not recommended by my professor. Can anyone give me an idea on how to graph it?
Cellulon, a manufacturer of home insulation, wants to develop guidelines for builders and consumers on how the thickness of the insulation in the attic of a home and the outdoor temperature affect natural gas consumption. In the laboratory, it varied the insulation thickness and temperature. A few of the findings are: Monthly Natural Gas Consumption (cubic feet), Thickness of Insulation (inches), Outdoor Temperature (ºF), y x1 x2 30.3 6.0 40.0 24.2 12 40 27.9 8 49 On the basis of the sample results, the regression equation is: yˆy⁢^⁢ = 56.26 − 0.66x1 − 0.59x2 How much natural gas can homeowners expect to use per month if they install 6 inches of insulation and the outdoor temperature is 40 degrees F? (Round your answer to 2 decimal places.) What effect would installing 7 inches of insulation instead of 6 have on the monthly natural gas consumption (assuming the outdoor temperature remains at 40 degrees F)? (Round your answers…
Indicate the dependent and independent variables, the number of levels for each independent variable, and whether each variable is within-subjects or between subjects 1. Individuals with anorexia and individuals with bulimia take a cognitive distortions test upon entering a treatment program for eating disorders and again three weeks later.
MANUAL SOLUTIONS DONT USE EXCEL
For each scenario below name one categorical and one quantitative used and write the complete answer in the box below. a) 9 randomly selected patients with 4 blood types (A , B, O, AB) were tested for their body temperature. Categorical variable: Quantitative variable: b) 10 faculty members from the Physics, Psychology and Biology department were asked about their annual salary. Categorical variable: Quantitative variable:

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