We want to test whether males are taller than females. Heights of males and females are collected and the excel outputs are given below. Assume height is normally distributed for males and females with equal variances.   t-Test: Two-sample assuming equal variances    Male  Female Mean  170.86 169.1333 Variance 11.2249 15.93636 Observations 50 45 Pooled Variance 13.45398   Hypothesized Mean Difference  0   df 93   t Stat 2.290934   P(T<=t) one-tail 0.012113   t Critical one-tail 1.661404   P(T<=t) two-tail 0.024226   t Critical two tail 1.985802     t-Test: Two-sample assuming unequal variances    Male Female Mean 170.86 169.1333 Variance 11.2249 15.93636 Observations 50 45 Hypothesized Mean Difference  0   df 86   t stat 2.269888   P(T<=t) one-tail 0.012857   t critical one-tail 1.662765   P(T<=t) two-tailed 0.025715   t critical two-tail 1.987934   You are given two excel outputs. Select your value from the appropriate excel output. Write down the critical value for this test given in the table (give you answer to 4 decimal places)

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We want to test whether males are taller than females. Heights of males and females are collected and the excel outputs are given below. Assume height is normally distributed for males and females with equal variances.  

t-Test: Two-sample assuming equal variances 

  Male  Female
Mean  170.86 169.1333
Variance 11.2249 15.93636
Observations 50 45
Pooled Variance 13.45398  
Hypothesized Mean Difference  0  
df 93  
t Stat 2.290934  
P(T<=t) one-tail 0.012113  
t Critical one-tail 1.661404  
P(T<=t) two-tail 0.024226  
t Critical two tail 1.985802  

 

t-Test: Two-sample assuming unequal variances 

  Male Female
Mean 170.86 169.1333
Variance 11.2249 15.93636
Observations 50 45
Hypothesized Mean Difference  0  
df 86  
t stat 2.269888  
P(T<=t) one-tail 0.012857  
t critical one-tail 1.662765  
P(T<=t) two-tailed 0.025715  
t critical two-tail 1.987934  

You are given two excel outputs. Select your value from the appropriate excel output.

Write down the critical value for this test given in the table (give you answer to 4 decimal places)

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