Question: a survey asked how many tattoos do you currently have on you body? Of the 1219 males surveyed, 178 responded that they had at least
a survey asked "how many tattoos do you currently have on you body?" Of the 1219 males surveyed, 178 responded that they had at least one tattoo. Of the 1037 surveyed, 129 responded that they had at least one tattoo. Construct a 99% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval.
Let P1 represent the proportion of males with tattoos and P2 represent the proportion of females with tattoos. Find the 99% confidence interval for P1-P2.
Lower bound is ____
Upper bound is _____
Round to three decimal places.
Interpret the interval.
A. There is a 99% probability that the difference of the proportions is in the interval. Conclude that there is insufficient evidence of a significant difference in the proportion of males and females that have at least one tattoo.
B. There is a 99% confidence that the difference of the proportions is in the interval. Conclude that there is a significant difference in the proportion of males and females that have at least one tattoo.
C. There is a 99% probability that the difference of the proportions is in the interval. Conclude that there is a significant difference in the proportion of males and females that have at least one tattoo.
D.There is a 99% confidence that the difference of the proportions is in the interval. Conclude that there is insufficient evidence of a significant difference in the proportion of males and females that have at least one tattoo.
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