Question
Heart rates were measured in 2 groups of individuals. One group included individuals that had recently...
Heart rates were measured in 2 groups of individuals. One group included individuals that had recently had heart attacks. The other group included normal individuals. A t-test was performed. The calculated t = 7.04. The critical t at 7 degrees of freedom was: 2.36. What is the conclusion? significant difference unknown until another t test is calculated no significant difference O unknown until a standard deviation is calculated
Answers
Answer:
Significant difference
Explanation:
For the given two sample t test for the difference between two population means, we are given
Test statistic = t = 7.04
Critical value = 2.36
So, we have test statistic greater than the critical value.
So, we reject the null hypothesis.
So, there is sufficient evidence to conclude that there is significant difference between the two population means.
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