What variables do Teczar find to have the most significant controlled associa
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What variables do Teczar find to have the most significant controlled association with women in ministries?
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- 4. Aresearcher wants to know if there is relationship between driver's age and the number of accidents he or she had last year. (HO): (Ha): Hypothesis test: 5. Ateacher wants to know if there is significant difference in the academic performance between male and female students enrolled in Statistics. (HO): (Ha): Hypothesis test: I SAMSUNGWhat statistical tool should be used when you want to compare 4 refrigerators to know if there is a significant differences among them in terms of: 1. Energy efficiency factor (EEF) = volume cooled (L) / energy consumption (kWh/24h) 2. Energy consumption (kWh/24h) 3. Rated power input (W) 4. Price ($) Example data: EEF Energy consumtion (kWh/24h) Rated power input (HP) Price Ref 1 254 1.00 0.0952 20,239.56 Ref 2 431 0.51 0.0738 17,495.00 Ref 3 260 1.09 0.1408 18,700.00 Ref 4 260 1.17 0.1408 22,100.00Suppose the change in price from 2012 to 2013 for 10 houses in Toronto ismeasured (in percent) for a study to determine the possibility of a financial bubble in the real estatemarket. The change, in percent, for a sample of 10 houses was recorded as:0, 5, -10, -15, 10, 20, 15, -10, -5, and -10.a) For this experiment, what is the variable of interest and the statistical population?b) What is the median change in price for the sample.c) Find the sample mean and the sample standard deviation.d) Find the quartiles of the sample and the z-score of the percentage price change equal to 12 (forstandard deviation use 12).e) Draw a boxplot and determine if there is any outlier.
- 5. The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo. Standard Drug 44.9 (5.1) Characteristic* New Drug Placebo Age, years 45.2 (4.8) 42.8 (4.3) 0.5746 % Female 51% 55% 57% 0.1635 Annual Income, $000s 59.5 (14.3) 63.8 (16.9) 58.2 (13.6) 0.4635 % with Insurance 87% 65% 82% 0.0352 Disease Stage 0.0261 35% 18% 33% Stage I Stage II Stage III *Table entries and Mean (SD) or % 42% 37% 47% 23% 51% 20% a) Are there any statistically significant differences in the characteristics shown among the treatments? Justify your answer.4. In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it is found that 63 of 100 urban residents favor the construction while only 59 of 125 suburban residents are in favor. Is there a significant difference between the proportions of urban and,suburban residents who favor construction of the nuclear plant? Use 0.01 level of significancePlease report the covariance and correlation coefficient of stock TATA and BIRLA
- 4. Which of the following factors has the highest positive correlation with life expectancy in some countries in Asia? Why do you think this factor has the highest correlation with life expectancy? Use the data below. World Happiness Report 2016 (Cantril Ladder (0=worst; 10=best))*** Vegetable supply Life expectancy (years)* Average annual hours worked by each person** per person Country (kilograms per year)**** Cambodia 69.3 103.0 4.6 30.3 Hong Kong 84.5 91.0 5.4 129.9 India 69.2 89.0 4.0 79.9 Japan Myanmar Philippines South Korea Sri Lanka 84.3 73.0 5.9 91.1 66.6 102.0 4.2 82.8 71.0 90.0 5.6 62.6 82.6 86.0 5.9 197.1 76.6 81.0 4.3 49.8 Taiwan 80.1 83.0 6.4 117.8 Thailand 76.7 91.0 5.9 39.9 Turkey 77.2 77.0 5.6 254.1 Vietnam 75.2 91.0 5.2 170.5he North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 420 out of 912 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places. Can you conclude that more than half of Americans believe that NAFTA was bad for the United States? No conclusions can…