Question: 1. What is a condenceinterval estimate of a parameter? Why is such an estimate superior to a point estimate? (3 marks) 2. Explain the similarities

1. What is a condenceinterval estimate of a parameter? Why is such an estimate superior to a point estimate? (3 marks) 2. Explain the similarities and differences between a standard normal distribution and the Student's t distribution. (3 marks) 3. Must the variable under consideration be normally distributed for you to use the zinterval procedure or tinterval procedure? Explain your answer. (2 marks)

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