Reference no: EM132514951
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to contain 7.0 ounces. Eight cups of coffee from this machine show the average content to be 7.3 ounces with a sample standard deviation of 0.5 ounce. Do you think that the machine has slipped out of adjustment and that the average amount of coffee per cup is different from 7 ounces? Use a 5% level of signi?cance.
a.) What is α? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test?
α =
H0: μ =
H1: μ Select an answer [> , <, not =]
The test is a Select an answer [left-tailed ,right-tailed, two-tailed]
b.) Identify the Sampling Distribution you will use. What is the value of the test statistic?
The best sampling distribution to use is the Select an answer [Normal Student's or distribution]
The test statistic (z or t value) is =
c.) Find or estimate the P-value for the test.
The p-value is = Select an answer Between 0.010 and 0.025 Between 0.025 and 0.050 Between 0.050 and 0.075 Between 0.075 and 0.100 Between 0.100 and 0.150
d.) Conclude the test.
Based on this we will Select an answer [Reject Fail or reject] the null hypothesis.