The confidence interval for the population mean is 0.2896 , 0.3505)
The sample mean is x = 0.32
The sample standard deviation is s = 0.09
The sample size is n = 10
The population standard deviation is unknown and sample size is atleast 10.
Thus use the t distribution.
Replacing the values in the following formula, determine the 95% confidence interval.
95% C.I = x ± t₀.₉₅,ₙ₋₁ . Sm
= x ± t₀.₀₅/₂,₁₀₋₁ . s/√n
= 0.32 ± 2.03 . 0.09/√10
= (0.2896 , 0.3505)
Hence the confidence interval for the population mean is 0.2896 , 0.3505)
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