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In R, the t.test() function is used to perform a t-test, which compares the means of two independent groups (samples) to determine if there is a statistically significant difference between them. The t.test() function is versatile and can perform both one-sample and two-sample t-tests. It also provides useful outputs, such as p-values and confidence intervals, to evaluate hypothesis tests for means. Why Other Options Are Wrong : B) anova() : ANOVA is used for comparing the means of more than two groups, not two independent samples. C) lm() : The lm() function is used for linear modeling (regression), not hypothesis testing of means. D) cor.test() : This function is used to test the correlation between two variables, not for comparing sample means. E) chisq.test() : The Chi-squared test is used for categorical data and tests the relationship between observed and expected frequencies, not for comparing means.
In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they se...
Statements:
Only a few Beautiful is Intelligent.
Only a few Smart is Beautiful.
No Smart is Honest.
Conclusion:
I. No...
Statements: All covers are glasses.
Some caps are covers.
No cup is a cap.
Conclusions: I. Some cups are not...
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be tru...
Statements:
All Water are Milk
Some Lassi are Milk
All Tea are Water
Only a few Coke are Lassi
Conclusi...
Statements : All one are two.
All three are two.
...
Statements:
Only subjects is notes.
Some subjects are topic.
Some topic are papers.
No topic is index.
Conclusions
Statement : 75 % Minutes are Watch
Few Watch are Hour
All Hour are Month
Conclusion
I. Mostly Minutes are hour
...Statements:
Some bangles are necklaces.
No necklace is a ring.
Only a few rings are anklets.
All anklets are earrings.
<...Statement:
I) No A is B
II) No B is C
III) Some D are C
IV) All D are E
Conclusion:
I) Some E are not D
II) Some A are C
III) No C is A
