Question 1187490: The Mathematical Anxiety Rating Scale (MARS) measures an individuals level of mathematical anxiety on a scale from 25 (no anxiety) to 100 (highest anxiety). A group of researcher administered the MARS to 50 students. One of the objectives of the study was to determine if there is a difference between levels of mathematical anxiety experienced by male and female psychology students.
alpha level=0.05level of significance, is there evidence of a difference in the mean mathematical anxiety experienced by male and female psychology students?
Solution:
Step 1: State the hypotheses
Ho:
Ha:
Step 2: The level of significance and the critical region
Step 3: Compute for the value of t test.
Step 4: Decision rule.
Step 5. Conclusion.
Please help me with this problem, this is the only problem that I haven't finished yet 🥺 and the deadline will be this coming Wednesday. Thankyou in advance. GB
Nov. 10 11:59 pm
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! let M be the mean of the male students; F the mean of the female students.
Ho: M=F
Ha:M NE F;they are unequal
alpha=0.05 p{reject Ho|Ho true}
test statistic is a t(0.975, df=48)
critical value can be looked up for that test statistic. Reject if |t| > 2.01
Compute the value where t=(M-F)/sqrt ((sdM^2/25)+(sdF^2/25)
or get the pooled variance and the denominator is sp * sqrt ((1/n1)+(1/n2)). Some use it, others don't.
Compare with critical value.
Reject the null hypothesis; the two are different OR fail to reject the null hypothesis, insufficient evidence to say the two are different.
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