Statistics right-tail hypothesis-t-statistic

Assignment Help Basic Statistics

Reference no: EM13112612

Question :

The mean score on a standardized psychology test is supposed to be 50. Believing that a group of psychologists will score higher, we test a random sample of 11 psychologists. Their mean score is 45 with s=3. Test at a level of significance of 1%.

Reference no: EM13112612

Questions Cloud

Is number of deaths from copd in group excessive : Death would be expected based on statewide mortality rates. Is the number of deaths from COPD in this group excessive?

Hypothesis testing for mean-proportion-critical value : Inspection of student data generated during pre/post treatment surveys shows that among 10 subjects, 7 had higher scores after an experimental treatment

Corporate income tax rates for businesses increase : The price of computer chips decreases significantly, enabling manufacturers of hard drives to produce more hard drives. How will this affect the market for hard drives?

Illustrate what are examples of external and internal change : Illustrate what are examples of external and internal change agents? Illustrate what role do change agents play in the execution of a road map for a strategic plan?

Statistics right-tail hypothesis-t-statistic : The mean score on a standardized psychology test is supposed to be 50. Believing that a group of psychologists will score higher, we test a random sample of 11 psychologists.

Illustrate what are the potential costs and risk : Explain how is this different from the strategies of both Goizueta and Daft? Illustrate what are the benefits? Illustrate what are the potential costs and risk?

Precipitate of magnesium flouride : Will a precipitate of magnesium flouride form when 200.0 milliliter of 1.9x10^-3mol/Litre MgClsubnumber2 solution is added to 300.0 milliliter of 1.4x10^-2mol/Litre NaFsolution?

Explain double-blind and placebo-controlled : "Factorial" means that the treatments are formed from more than one factor. What are the factors? What do "double-blind" and "placebo-controlled" mean?

Two sample hypothesis test difference of means : Is there a statistically significant difference between the bowling averages of male nurses and those of businessmen, if last year's league play produced the following data

User Account

All Pages