Assignment: Submit the le copy of your solution. We need to determine if the mean score of 641 of the students on the exam is higher than the population mean of 600. The standard deviation of the scores is 100 and the size of the sample is 20. Do a hypothesis testing and determine your decision with a=.05: (Hint: Use one sample Z-test} State the following: 1. Null Hypothesis 2. Alternate Hypothesis 3. 2 score {computed} Given :1=.05, the critical value = 1.645 1. Compare 2 score {computed} as against critical value 2. Make decision 3. Interpret the decision