2. In previous sittings of MTH 201 the marks obtained by students in the final exam has been successfully modelled with a normal distribution with a mean of 28 and a standard deviation of 8. A sample of 25 students from last semester's exam results shows average of 30. Does this mean that last semester's students performed better than the previous years. a . Investigate at the 10 percent significance level [ 'b. Explain what is meant by a TYPE Il Error [
2. In previous sittings of MTH 201 the marks obtained by students in the final exam has been successfully modelled with a normal distribution with a mean of 28 and a standard deviation of 8. A sample of 25 students from last semester's exam results shows average of 30. Does this mean that last semester's students performed better than the previous years. a . Investigate at the 10 percent significance level [ 'b. Explain what is meant by a TYPE Il Error [
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 7E
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