Question

In: Statistics and Probability

According to an article, “only 1 in 5 American women believe that the heart disease is...

According to an article, “only 1 in 5 American women believe that the heart disease is her greatest health threat.” A sample of 50 women is taken where 8 of them stated that they believe that the heart disease is the greatest threat to their health.

  • At 0.01 level of significance, can we conclude that the website overestimated the percentage of the women that believe that the heart disease is the greatest threat to their health? In other words, is the proportion of the women who believe that the heart disease is the greatest threat to their health less than 20%? Show all the five steps of the hypothesis testing.
  • Report and interpret the p-value.

Solutions

Expert Solution

TOPIC:Test for population proportion.

Here,the sample size is greater than 30.So,we can use the Normality assumption.

orchestra answered 11 months ago
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