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Genrish500 [490]
3 years ago
7

A simple random sample of the weights of 59 green candies has a mean of 0.8635 g. Assume that σ is known to be 0.0565 g. Assume

a confidence level of α = 0.05. Find the value of the test statistic z that you would use to test the claim that the mean weight of all green candies is equal to 0.8535 g using
A simple random sample of the weights of 59 green candies has a mean of 0.8635 g. Assume that σ is known to be 0.0565 g. Assume a confidence level of α = 0.05. Find the value of the test statistic z that you would use to test the claim that the mean weight of all green candies is equal to 0.8535 g using

.


1.36


0.04


0.32


–1.36

.


1.36


0.04


0.32


–1.36
Mathematics
2 answers:
mina [271]3 years ago
6 0

Solution: We are given:

\mu=0.8635

\sigma=0.0565

n=59

We need to find the test statistic in order to test the claim that the mean weight of all green candies is equal to 0.8535

We know that the test statistic is:

z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}

        =\frac{0.8535-0.8635}{\frac{0.0565}{\sqrt{59}}}

        =\frac{-0.01}{0.007355673}

        =-1.36

Therefore, the test statistic is z=-1.36

Hence the option -1.36 is correct.

Sindrei [870]3 years ago
4 0

Answer: positive 1.36 I just took the quiz

Step-by-step explanation:

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