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!!!20 POINTS!!!


Q1: A factory produces candy bars, with mean weight 5 grams. After the machines were updated with new tech, a worker worries the candy bars are now lighter on average. To test this theory, the worker collects a random sample of candy bars and measures their mean weight. Identify the null and alternative hypotheses in this situation.

Q2: If the p-value for the flint water crisis example was instead p=0.231, what would the conclusion of the hypothesis test be?

Q3: How would you explain p-value means to someone who doesn’t know any statistics? be clear and specific.

Respuesta :

Considering the desired test, it is found that:

1)

The null hypothesis is: [tex]H_0: \mu = 5[/tex]

The alternative hypothesis is: [tex]H_1: \mu < 5[/tex]

2) Since the p-value is greater than the standard significance level of 0.05, we do not reject the null hypothesis.

3) The p-value is the probability of finding a measure as extreme as the one found in the sample, considering any of the three kind of tests: left-tailed, right-tailed and two-tailed.

What are the hypothesis tested?

At the null hypothesis, we test is the mean weight is still the same, that is:

[tex]H_0: \mu = 5[/tex]

At the alternative hypothesis, we test if the weight has decreased, that is:

[tex]H_1: \mu < 5[/tex]

Question 2:

Since the p-value is greater than the standard significance level of 0.05, we do not reject the null hypothesis.

Question 3:

The p-value is the probability of finding a measure as extreme as the one found in the sample, considering any of the three kind of tests: left-tailed, right-tailed and two-tailed.

More can be learned about hypothesis tests at https://brainly.com/question/16313918

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