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sydneylocascio26
30.11.2019 •
Mathematics
Asurvey of 61 comma 646 people included several questions about office relationships. of the respondents, 26.5% reported that bosses scream at employees. use a 0.05 significance level to test the claim that more than 1 divided by 4 of people say that bosses scream at employees. how is the conclusion affected after learning that the survey is an online survey in which internet users chose whether to respond? identify the null hypothesis, alternative hypothesis, test statistic, p-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. use the p-value method. use the normal distribution as an approximation of the binomial distribution.
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Ответ:
H ₀ : p ≤ 0.25
H ₁: p > 0.25
Test statics value z = 12.91
Decision Rule:
Reject the value of null hypothesis
Conclusion:
If survey is online then there is sufficient evidence to claim . If the sample is voluntary response sample then conclusion is not valid.
Step-by-step explanation:
step by step explanation is shown in attachment.
Ответ: