1. An analyst wishes to test the impact of a new patient schedule system on numb
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Question
1. An analyst wishes to test the impact of a new patient schedule system on number of MRI tests performed per day. What statistical test should be used? Question options:
A. Paired t-test
B. Two-sample t-test
C. ANOVA
D. T-test
2. A study was conducted to determine if students remembered more medical terms from an on-line or in-person course. The average number of terms recalled by a sample of 10 students in the in-person course was 75 with a standard deviation of 2.0. The average number of terms recalled by a sample of 10 students in the on-line course was 50 with a standard deviation of 3.5.
What statistical inference tool should be used to determine if the difference between the two groups is statistically significant?
A. ANOVA
B.Chi-squared Test
C. Regression
D.Two-sample T-test
3. A study was conducted to determine if students remembered more medical terms from an on-line or in-person course. The average number of terms recalled by a sample of 10 students in the in-person course was 75 with a standard deviation of 2.0. The average number of terms recalled by a sample of 10 students in the on-line course was 50 with a standard deviation of 3.5.
If the value of the test statistic was 2.5 and alpha was set to 5 percent, what would be the conclusion of the test? Use table 5.1 in your textbook
Accept the null hypothesis that the two populations of students retain equal number of terms
Reject the null hypothesis and conclude that the in-person students retained more terms
Reject the null hypothesis and conclude that the on-line students retained more terms
Do not reject the null hypothesis that the two populations of students retain equal number of terms
3. A study was conducted to determine if students remembered more medical terms from an on-line or in-person course. The average number of terms recalled by a sample of 10 students in the in-person course was 75 with a standard deviation of 2.0. The average number of terms recalled by a sample of 10 students in the on-line course was 50 with a standard deviation of 3.5.
If the value of the test statistic was 2.5 and alpha was set to 5 percent, what would be the conclusion of the test? Use table 5.1 in your textbook
A.Accept the null hypothesis that the two populations of students retain equal number of terms
B.Reject the null hypothesis and conclude that the in-person students retained more terms
C.Reject the null hypothesis and conclude that the on-line students retained more terms
D.Do not reject the null hypothesis that the two populations of students retain equal number of terms
Explanation / Answer
Solution1:
will be analysing the impact before and after.use paired t test
Paired t-test
Solutioon2:
we are comparing two means of two groups
.perform t test.
Two-sample T-test
Solution3:
assuming z cal=2.5
z critical=1.96 for 95%
zcal> z crit
Reject Null hypothesis
.we conclude:students remembered more medical terms from an on-line or in-person course
Reject the null hypothesis and conclude that the in-person students retained more terms
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