Explain with an equation the Population Dynamics of Ibra Wilayat, Sultanate of Oman

Chapter 3, Section 1, Exercise 001 State whether the quantity described is a parameter or a statistic and give the correct notation.Average household income for all houses in the US, using data from the US Census.

The file MidCity Download MidCitycontains data on 128 recent sales in Mid City. For each sale, the file shows the neighborhood (1, 2, or 3) in which the house is located, the number of offers made on the house, the square footage, whether the house is made primarily of brick, the number of bathrooms, the number of bedrooms, and the selling price. Neighborhoods 1 and 2 are more traditional neighborhoods, whereas neighborhood 3 is a newer, more prestigious neighborhood. Conduct a regression analysis to understand, estimate and interpret the square footage of houses in Mid City. Use one Excel spreadsheet labeled P2 to show your work for this problem.   Home Nbhd Offers Sq Ft Brick Bedrooms Bathrooms Price 1 2 2 1790 No 2 2 228600 2 2 3 2030 No 4 2 228400 3 2 1 1740 No 3 2 229600 4 2 3 1980 No 3 2 189400 5 2 3 2130 No 3 3 239600 6 1 2 1780 No 3 2 229200 7 3 3 1830 Yes 3 3 303200 8 3 2 2160 No 4 2 301400 9 2 3 2110 No 4 2 238400 10 2 3 1730 No 3 3 208000 11 2 3 2030…

15. Test Match. Sachin Tendulkar, a former cricket player of India played International cricket from 1989 to 2013. His debut match was a test match against Pakistan in 1989. He has played a total of 200 test matches with a total of 15,921 runs. The following table shows the number of runs he scored from 1994 to 2013 in his career of test matches. 700 58 623 1000 647 1088 575 1003 1392 153 915 444 267 776 1063 541 1558 756 357 276 a. Find the mean, median, and mode of these data. b. Which measure of center do you think is best here? Explain your answer.

Chapter 6, Section 3-CI, Exercise 145 Are Errors Less Likely with Electronic Prescriptions?Errors in medical prescriptions occur and a study1 examined whether electronic prescribing may help reduce errors. Two groups of doctors used written prescriptions and had similar error rates before the study. One group switched to e-prescriptions while the other continued to use written prescriptions, and error rates were measured one year later. The results are given in Table 1.     Error No Error Total Electronic 254 3594 3848 Written 1478 2370 3848 Table 1 Are prescription error rates different? Find a 90% confidence interval for the difference in the two proportions, pw-pe, where pw is the proportion of errors using written prescriptions and pe is the proportion of errors using e-prescriptions.Round your answers to three decimal places.The 90% confidence interval is Enter your answer; The 90%confidence interval, value 1 to Enter your answer; The 90%confidence interval, value…

What  are the strengths and the weaknesses of experimental designs?

17. A researcher wanted to see what had a larger affect on weight loss and tested number of minutes of exercise (30 minutes vs. 60 minutes and 90 minutes) per day and number of hours of sleep (6, 7 or 8 hours) on their weight loss. The conditions had 9 participants each. Please fill in the missing values in table below. Start with the degrees of freedom values and using algebra calculate the other values for each category. (It might be helpful to have equations from this chapter handy to reference).           Source SS df MS F Between treatments 144.00       Factor A (exercise)     18.00   Factor B (hours of sleep)         AxB       7.00 Within Treatments         Total 360.00         18. Why are the results considered partial when referring to the eta square (η2) for the factorial ANOVA?

Chapter 6, Section 2-HT, Exercise 128 - MathPad Are Florida Lakes Acidic or Alkaline?The pH of a liquid is a measure of its acidity or alkalinity. Pure water has a pH of 7, which is neutral. Solutions with a pH less than 7 are acidic while solutions with a pH greater than 7 are basic, or alkaline. The dataset FloridaLakes gives information, including pH values, for a sample of lakes in Florida. Computer output of descriptive statistics for the pH variable is shown:   Descriptive Statistics: pH Variable N N* Mean SE Mean StDev Minimum Q1 Median Q3 Maximum pH 53 0 6.591 0.177 1.288 3.600 5.800 6.800 7.450 9.100 Click here for the dataset associated with this question.         (a) How many lakes are included in the dataset? What is the mean pH value? What is the standard deviation?Enter the exact answers.n= Enter your answer in accordance to item (a) of the question statementx¯= Enter your answer in accordance to item (a) of the question…

The Excel file (Forecasting Assignment Data) contains quarterly motorcycle shipments for Harley-Davidson from 2000 through 2006. Forecast Harley-Davidson quarterly motorcycle shipments for 2007 using 1) Holt’s Method  2) Winter’s Method 3) Linear Trend Model  4) Quadratic Trend Model  5) Quadratic Trend with Seasonal Indices Model  In addition, make a recommendation of which forecasting method you think Harley-Davidson should use and why. Year Quarter Period DemandAt 2000 1 1 49,057   2 2 53,329   3 3 48,077   4 4 54,129 2001 1 5 54,154   2 6 60,161   3 7 56,611   4 8 63,535 2002 1 9 64,669   2 10 65,540   3 11 67,474   4 12 65,970 2003 1 13 70,608   2 14 76,025   3 15 67,458   4 16 77,056 2004 1 17 74,090   2 18 82,034   3 19 80,578   4 20 80,587 2005 1 21 76,716   2 22 77,128   3 23 87,585   4 24 87,588 2006 1 25 79,506   2 26 79,796   3 27 97,046   4 28 92,848

Although a research study is typically conducted with a relatively small group of participants known as a most researchers hope to generalize their results to a much larger group known as a