Mathematics, 06.05.2020 05:35 alyssavwil233
Step 1 of 3: A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 432 gram setting. It is believed that the machine is underfilling the bags. A 39 bag sample had a mean of 426 grams. Assume the population standard deviation is known to be 26. At level of significance of 0.05 we have the test : H0: μ ≥ 432, H0: μ < 432 Choose the value of the test statistic to the second decimal place:
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is the value tested at the null hypothesis, 
is the standard deviation and n is the size of the sample.
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