A bottling plant produces one-litre bottles of soda. The actual distribution of volumes of soda dispensed to bottles is Normal, with mean μ and standard deviation σ = 0.05 litre. We randomly select eight (8) bottles and measure the volume of soda in each. The results of these eight measurements (all in litre units) are
1.05, 1.04, 1.01, 1.06, 0.94, 0.99, 1.01, 1.02 If they want to calculate a 95% confidence interval for μ, they should

Question

A bottling plant produces one-litre bottles of soda. The actual distribution of volumes of soda dispensed to bottles is Normal, with mean μ and standard deviation σ = 0.05 litre. We randomly select eight (8) bottles and measure the volume of soda in each. The results of these eight measurements (all in litre units) are 
 1.05,  1.04,  1.01,  1.06,  0.94,  0.99,  1.01,  1.02 If they want to calculate a 95% confidence interval for μ, they should

Accepted Answer

find the sample mean   \bar{x}  and use the formula   \bar{x}\pm Z^*\frac{\sigma}{\sqrt{n}}  with Z*=1.96,   \sigma  =0.05 and n=8.

Answer

find the sample mean   \bar{x}  and use the formula   \bar{x}\pm Z^* \frac{\sigma^2}{n}  with Z*=1.96,   \sigma  = 0.05 and n=8.

Answer

find the sample mean   \bar{x}  and use the formula   \bar{x}\pm Z^* \frac{\sigma}{\sqrt{n}}  with Z*=2.576,   \sigma  = 0.05 and n=8.

Answer

find the sample mean   \bar{x}  and use the formula   \bar{x}\pm Z^* \frac{\sigma}{n}  with Z*=1.96,   \sigma  = 0.05 and n=8.

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A bottling plant produces one-litre bottles of soda. The actual distribution of...

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