Practice Problems Sample T

# Practice Problems Sample T - Sample T-Test Exercises A...

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Sample T-Test Exercises A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 420 gram setting. It is believed that the machine is under filling the bags. A 30 bag sample had a mean of 414 grams with a standard deviation of 20 grams. A level of significance of 0.02 will be used. Determine the P-value of the test statistic. Round your answer to 4 decimal places. Assume the population is normally distributed. Enter the P-value of the test statistic. You may enter the P value as a range using interval notation, or you may enter an exact value. Find the p-value for the following situations, with calculated test statistic given by t* 1. Ho: mu<=72.5, t*=2.72, n=12 2. Ho: mu=72.5, t*=2.72, n=12 3. Ho: mu<=180.7, t*=1.3, n=41 4. Ho: mu=180.7, t*=1.3, n=41

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Use the information given in the following paragraph to answer next three questions. A lumber company is making 2x4s that are 11 feet long. These 2x4s are being used to make prefabricated homes. If the 2x4s are too long they must be trimmed which

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Practice Problems Sample T - Sample T-Test Exercises A...

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