Hi! I need help with figuring out the critical value, standard error and the Z or T value. I also need help with figuring out the 99% confidence interval, the new critical values for that and the two new values. Thanks!

Q/7: The statistical decision is to fail to reject the null, and Ho is really false (ie a Type II error) 0: 30 The following 14 questions (078 to (91) are based on the following example: A researcher wants to determine whether high school students who attend an SAT preparation course score significantly different on the SAT than students who do not attend the preparation course. For those who do not attend the course, the population mean is 1050 (u = 1050). The 16 students who attend the preparation course average 1150 on the SAT, with a sample standard deviation of 300. On the basis of these data, can the researcher conclude that preparation course has a significant difference on SAT scores? Set alpha equal to .05. 278: The appropriate statistical procedure for this example would be a A. z-test B. t-test 79: Is this a one-tailed or a two-tailed test? A, one-tailed B. two-tailed