[4/8, 2:14 PM] Kiprutohsangkoros: In Hypothesis Testing the "Null Hypothesis", Ho, assumes and means:

All observed results in regression analysis are the result of systemic causes;

All observed results in the regression analysis are the result of random chance;

Has nothing to do with regression analysis;

None of the above.

19.In Hypothesis testing the "Alternative Hypothesis", H(A), assumes and means:

All observed results in regression analysis are the results of random chance;

Observed results in the regression analysis are the results of systemic causes with random change having limited probability of effecting the results;

Has nothing to do with regression analysis;

All of the above;

[4/8, 2:23 PM] Kiprutohsangkoros: Write short notes on the following:

a. Regression analysis and its use in business

b. Tge four components of a time series.

c. The important of Moving Average Method

d. Multicollinearity in regression analysis.

e. The use of adujsted R square in regression analysis.

f. Advantages of stratified random sampling method over simple random.

g. Non-probability sampling methods. Give two examples.

The correlation coefficient for the data is r = 0.578 and a =0.05. Should regression analysis be done? O The regression analysis should not be done. O The regression analysis should be done. Find the equation of the regression line. Round the coefficients to at least three decimal places. y = atbx a b= Predict y ' if x = 220 days. Round your answer to at least one decimal place.12. Azomethane, CH3N2CH3 (g), decomposes according to the reaction equation CH3N2CH3 (g) - CH3CH3 (g) + N2 (8) If the decomposition is a first-order process with k = 4.0 x 10-4 s-1 at 300 C, what fraction of azomethane has decomposed after 45 minutes? A) 0.34 B) 0.36 C) 0.43 D) 0.66