You invested 19,000 in two accounts paying 8% and 9% annual interest, respectively. If the total interest earned for the year wa
1 answer:
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Answer:
There is sufficient evidence to conclude that six inches spacing has a higher mean failure pressure than 8 inches
Reject level of significance
Step-by-step explanation:
From the question we are told that:
Sample size 1
Spacing 1
Mean 1
Standard deviation 1
Sample size 2
Spacing 2
Mean 1
Standard deviation 1
Generally the hypothesis is mathematically given as
Null
Alternative
Generally the equation for pooled estimate is mathematically given by
Therefore
Generally the equation for test statistics is mathematically given by
Therefore From table
Therefore
There is sufficient evidence to conclude that six inches spacing has a higher mean failure pressure than 8 inches
Reject level of significance