Help me to answer all the following given problems below, Statistics and Probability Tutorsss...

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Complete the following sentences by filling each blank with the correct word or phrase. 1. is a random variable that is calculated from sample data and is used in a hypothesis test. 2. includes all of the elements from a set of data while consists of one or more observations drawn from the population. 3. is a measure of variability calculated from every individual in the population while is calculated from only some of the individuals in a population. 4. The two common test statistics to be computed in hypothesis testing are and 5. A z-score is calculated with population parameters such as population mean and 6. A t-test is used when the or standard deviation is not known. 7. The number of sample for z-test is while in t-test . 8. If the population standard deviation is known, use and if it's unknown, use 9. The notations that need to be considered in identifying test statistics are and 10. If the number of samples is sufficiently large and the variance is unknown, then is appropriate to be used.Read, Analyze, and Answer! Directions: Answer the following. 1. In a sample of n=12 selected from a normal population, *=50, s=10, and null hypothesis is Ho: =45. a. What is the number of degrees of freedom? b. What is the test statistic to be used? 2. In order to test Ho: 11=26 versus Ha: