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X=0, Y=3, Z=1 E) Write down the null hypothesis, statistic's derivation and distribution for the purposes of the following test: - you need to assess the performance of daily Value-at-Risk (VaR) model for portfolio of stocks. You are interested whether the proportion of exceedances of the VaR corresponds to a%. Also, you have noticed that your portfolio performs better (in terms of returns) when the exchange rate KZT/USD is increasing and when the oil prices' fluctuations no more than $3. KZT= Kazakhstan's currency, the GDP of country is strongly relying on the oil extraction