Nancy believes that the average running time of movies is equal to 140 minutes.A sample of 4 movies was taken and the following running times were obtained.Assume the population of the running times is normally distributed.
a.Compute the sample mean and the standard deviation.
b.State the null and alternative hypotheses.
c.Using the critical value approach,test the hypotheses at the 10% level of significance.
d.Using the p-value approach,test the hypotheses at the 10% level of significance.
Definitions:
Standard Input Device
Typically refers to the primary device used for input to a computer system, such as a keyboard.
EOF-Controlled
Refers to a loop or control structure that continues operation until reaching the End of File (EOF) marker in data processing.
Counter
A variable used in programming to tally occurrences or to keep track of incremental repetitions in control structures like loops.
Logical Expression
A statement that can be evaluated to true or false, often used in decision-making structures in programming.
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