Please use your understanding of community metrics to fill out the following table and answer the questions that follow. ommunity A Species Number of Individuals Total Individuals Number of species P In(p) pin(pi) H Ha 29 18 50 3 1. What is the H' for this community [Round to 3 decimal places 2. What is the Hmax for this community [Round to 3 decimal places 3. What is the J' for this community [Round to 3 decimal places rus carolinensis mias striatus Mus musculus teo jamaicensis
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.A study has been conducted to compare people of different backgrounds (Australians, Europeans, Asians, Other) and their Body Mass Index (BMI), which is measured on a continuous scale, with larger values representing larger BMIs. Which of the following best describes the level of measurement for BMI Categorical: Nominal Metric: Interval Categorical: Ordinal Metric: RatioHow do you calculate the variable Daily Spiritual Experience Scale (DSES). as a single numerical value to be used in SPSS for data analysis)? What is the potential numerical range and how is it interpreted? What is its scale of measurement? Note: if nominal, numerical is meaningless but necessary for SPSS so you won’t discuss the numbers in your paper.
- Twelve workers at a production line were asked to take a special three-day intensive course to improve their productivity. At the beginning and again at the end of the course, they were given a particular task to see the improvement in their productivity. Based on the data recorded for the two variables Number of years of experience X and Improvement (number of units per minute) Y, the following sums were calculated. xi = 96, yi = 132, xi2 = 892, yi2 =1510, xiyi= 1110 Consider estimating a simple linear regression model of the form y = b1 + b2x + e Q2. Sample mean of X, X, is 96 12 8 11 Q3. Sample Variance of Y, SY2, is 5.72 11.27 5.27 4.91 Q4. Sample correlation between X and Y, Corr(X, Y), is 0.46 0.50 0.64 -0.64Please answer part d, e, f, and g In a certain jurisdiction, all students in Grade Three are required to take a standardized test to evaluate their math comprehension skills.The attached contains these data resulting from a random sample of n=40 schools within this jurisdiction. From these data you wish to estimate the model Yi=β0+β1Xi+ei where Xi is the percentage of Grade Three students in School i who live below the poverty line and Yi is the average mathematics comprehension score for all Grade Three students in the same school, School i. The observed data for the X variable is labled perbelowpoverty and the obvserved data for the Y variable is labeled mathscore in the .csv file.Import (either hand type or load the file) data into R Studio, then answer the following questions based on the data.(a) Create a scatterplot of the data. What can you say about the nature of the relationship between the percentage of Grade Three students living below the poverty line in a certain school…Which of the following best describes the level of measurement of the birth weights described in exercise 3: nominal, ordinal, interval, rational?
- If we measure the variable "race" using the five primary categories used by the U.S. Census (White, Black/African American, American Indian/Alaska Native, Asian, and Native Hawaiian/Other Pacific Islander), then the level of measurement in this case is: Select one: 1.Interval/Ratio 2. Ordinal 3. NominalAssuming the lowest decile of men receive an average of $800/month in Social Security, while the highest decile receive $2200/month in Social Security how much does each receive (on average) during their years in retirement. Use the chart called: Predictive Years of Receiving Social Security Benefits. Also use the born in 1940 data.It is difficult to determine a person’s body fat percentage accurately without immersing him or her in water. Researchers hoping to find ways to make a good estimate immersed 20 male subjects to find their percent body fat and then measured their waists. Their goal is to be able to predict percent body fat from waist size. Waist (in) 32 36 38 33 39 40 41 35 38 38 33 40 36 32 44 33 41 34 34 44 Body Fat (%) 6 21 15 6 22 31 32 21 25 30 10 20 22 9 38 10 27 12 10 28 What is the regression model (i.e. the equation)? What number is the slope in your model? Explain in a complete sentence what the slope of the model means in terms of Waist size and Body Fat. Have Geogebra make a residual plot. What is the purpose of the residual plot? What does the residual plot you made with this data tell you? What is the correlation coefficient r for this data? If you square r, you…
- analyze This figure plots the changes in Vietnam’s TB during the period January 2010 – December 2019The toco toucan, the largest member of the toucan family, possesses the largest beak relative to body size of all birds. This exaggerated feature has received various interpretations, such as being a refined adaptation for feeding. However, the large surface area may also be an important mechanism for radiating heat (and hence cooling the bird) as outdoor temperature increases. Presented is the data for beak heat loss, as a percent of total body heat loss from all sources, at various temperatures in degrees Celsius. [Note: The numerical values in this problem have been modified for testing purposes.] Temperature (°C) 1515 1616 1717 1818 1919 2020 2121 2222 2323 2424 2525 2626 2727 2828 2929 3030 Percent heat loss from beak 3232 3636 3636 3333 3535 4747 5757 5151 4242 5353 4646 5252 5959 5959 6363 6262 (a) What is the equation of the least‑squares regression line for predicting beak heat loss, as a percent of total body heat loss from all sources, from temperature? (Use…Categorize these measurements associated with student life according to level: nominal, ordinal, interval, or ratio. (a) Length of time to complete an exam nominal ordinal interval ratio (b) Time of first class nominal ordinal interval ratio (c) Major field of study nominal ordinal interval ratio (d) Course evaluation scale: poor, acceptable, good nominal ordinal interval ratio (e) Score on last exam (based on 100 possible points) nominal ordinal interval ratio (f) Age of student nominal ordinal interval ratio