Question
In: Statistics and Probability
A manufacturer of banana chips would like to know whether its bag filling machine works correctly...
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 447 gram setting. It is believed that the machine is underfilling the bags. A 19 bag sample had a mean of 443 grams with a standard deviation of 21. A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.
Solutions
Expert Solution
We have given,
Sample size =n=19
Degree of freedom =n-1=19-1=18
Left tailed test.
t critical value = -2.101
| Decision rule for rejecting the null hypothesis : Reject H0 if t calculated < -2.101 |
orchestra answered 2 years agoRelated Solutions
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