Stats
A professor believes that all Thursday sections are cursed and will always score lower on tests compared to Monday sections. To tests this he collects samples of test scores from these two sections. For Monday's section, the mean test score was 60, the estimated population standard deviation was 5, and the sample size was 20. For Thursday's section the mean test score was 55, the estimated population standard deviation was 7 and the sample size was 20. With alpha equal to 0.05.
What is the appropriate statistical test? I'm not sure if it would be a ztest or an Independent Samples ttest.
I believe it would also be a one tailed test and I have no idea how to get the obtained value. Can anyone help? Sorry for the super long question.

Ho: M = T
Ha: M > T (onetailed)
I do not want to do an Ftest to find out if the SDs are equal.
Z = (mean1  mean2)/standard error (SE) of difference between means
SEdiff = √(SEmean1^2 + SEmean2^2)
SEm = SD/√n
If only one SD is provided, you can use just that to determine SEdiff.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability
related to the Z score. Is it ≤ .05?posted by PsyDAG
Respond to this Question
Similar Questions

graduate statistics
A nursing professor was curious as to whether the students in a very large class she was teaching who turned in their tests first scored differently from the overall mean on the test. The overall mean score on the test was 75 with 
Stats
a teacher teaches two sections (A and B) of a class. Both sections have a mean score of 75. Section A only has 5 students and they all received a score of 75, while section B has 15 students with a mean score of 75 with a variance 
math
Adam took five tests and received a grade for each of them. The first test was 92%, the second test was 83%, and the mean of the five tests was 85%. What can you conclude? a. the lowest test score. b. the highest test score. c. 
Math
In your class, you have scores of 73,85,76, and 92 on the first four of five tests. To get a grade of Upper C, the average of the first five tests scores must be greater than or equal to 70 and less than 80. a) Solve an 
ap stats
two different sections of electricians took their state license test. the first section consisted of 75 applicants having an average score of 262 and a sample standard deviation of 35. they were journeyman, experienced 
social science statistics
a professor was curious to whether the students in a very large class she was teaching who turned in their first scored differently from the overall mean on the test.The overall mean score on the test was 75 with a standard 
Statistics
Suppose that two different tests A and B are to be given to a student chosen at random from a certain population. Suppose also that the mean score on test A is 85, and the standard deviation is 10; the mean score on test B is 90, 
math
Jill knows her average score on five tests is 88. She can find all but one test. She has tests with scores of 96,83,100, and 79. What is the missing test? 
statistics
At the beginning of the semester, students who registered for a statistics course were randomly assigned to two sections, each taught by a different instructor. At the end of the semester, we would like to test whether there are 
Math
1) in a possible class, Rosa will take a total of 4 tests. She has already taken 2 of the tests and received scores of 81 and 83. What is the least possible score Rosa can obtain on the third test to still obtain an average score