13.1 23.3 2.28 31.2 1.78 38.3 51.3 0.75 20.5 2.38 22.7 2.78 1.03 2.20 (a) Find Ex, Ey, Ex², £y², £xy, and r. (Round r to three decimal places.) Ex= Ey | Ey² = Exy= (b) Use a 1% level of significance to test the claim that p < 0. (Round your answers to two decimal places.) critical t= Conclusion O Fail to reject the null hypothesis. There is insufficient evidence that p < 0. O Reject the null hypothesis. There is sufficient evidence that p < 0. O Fail to reject the null hypothesis. There is sufficient evidence that p < 0. O Reject the null hypothesis. There is insufficient evidence that p < 0. (c) Find Sa, and b. (Round your answers to five decimal places.) S. (d) Find the predicted optimal time in hours for a dive depth of x = 25 meters. (Round your answer to two decimal places.) hr (e) Find an 80% confidence interval for y when x = 25 meters. (Round your answers to two decimal places.) lower limit hr upper limit | hr () Use a 1% level of significance to test the claim that p < 0. (Round your answers to two decimal places.) critical t Conclusion O Fail to reject the null hypothesis. There is insufficient evidence that ß < 0. O Fail to reject the null hypothesis. There is sufficient evidence that p < 0.

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Quadratic Equation

When it comes to the concept of polynomial equations, quadratic equations can be said to be a special case. What does solving a quadratic equation mean? We will understand the quadratics and their types once we are familiar with the polynomial equations and their types.

Demand and Supply Function

The concept of demand and supply is important for various factors. One of them is studying and evaluating the condition of an economy within a given period of time. The analysis or evaluation of the demand side factors are important for the suppliers to understand the consumer behavior. The evaluation of supply side factors is important for the consumers in order to understand that what kind of combination of goods or what kind of goods and services he or she should consume in order to maximize his utility and minimize the cost. Therefore, in microeconomics both of these concepts are extremely important in order to have an idea that what exactly is going on in the economy.