A power analysis is important for which important step in research   Group of answer choices a priori analysis post hoc analysis Both a priori and post hoc Neither a priori, nor post hoc as a power analysis is conducted during the study itself.

Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 420 64.8 291 49.19 970 114.3 280 43.2 583 66.47 700 74 397 44.73 254 36.86 702 81.18 912 93.08 A student calculates a linear modelyy =  xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 285.Cost = $ (Please show your answer to 2 decimal places.)

Question : Is there enough evidence to conclude that subordinates satisfaction is dependent to gender relationship at a significant level of 0,05? Show the steps of the hypothesis testing

Q4 Deep leaming is a type of Machine Learning, inspired by the function and structure of a human brain, where machines can learn by experience and acquire skills without any human involvement. Table Q4 shows the relation of data amount and the performance of a deep learning technique capability to perform COVID-19 face mask identification among crowd in Pasar Rabu, Taman Universiti, Parit Raja. Table Q4 Independent variable Dependent variable Face mask identification Set of experiment Training data size, x аccuracy (%), у 1 100 30 200 40 3 300 50 400 55 500 60 6. 600 70 7 700 75 8 800 80 9 900 85 10 1000 90 10 10 10 Given > r; = 4600, = 635, > = 2860000 i=1 i=1 i=1 10 10 = 43875, >r yi = 322000 (a) Determine Sr, Syy, and Sry (b) Determine B. B. (c) Determine the estimated regression line equation.