A newspaper poll asked respondents if they trusted eco friendly labels on cleani

Question

A newspaper poll asked respondents if they trusted eco friendly labels on cleaning products. Out of the 1000 adults surveyed, 498 responded yes. We would like to test if the proportion of respondents that trust these labels is at least 50%.

1. The calculated test stat value is
A.) 0.139
B.) -0.126
C.) -1.89
D.) -2.45
E.) 1.27

2. At the 0.01 level of significance, the correct conclusion is
I. do not reject the null hypothesis.
II. reject the null hypothesis.
III. evidence suggest that at lest 50% of respondents trust eco friendly labels.
A. III only
B. I and III
C. II only
D. I only
E. II and III

Explanation / Answer

1) D 2) E

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