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A vending machine dispenses coffee. The average cup of coffee is supposed to contain 7.0 ounces....

A vending machine 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 standard deviation of 0.5 ounce. Using a 5% level of significance, test whether the machine has slipped out of adjustment and if the average amount of coffee per cup is different from 7 ounces.

State the null and alternate hypotheses

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Answer #1

this is the two tailed test .  

The null and alternative hypothesis is ,

H0 :   = 7

Ha :     7

answer=

The null and alternative hypothesis is ,

H0 :   = 7

Ha :     7

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