2(c) To compare the proportion of Mäori authorities that have a social media presence with the proportion of other Maori enterprises that have a social media presence, a 95% confidence interval was constructed for the difference of two proportions using the order Maori authorities - other Maori enterprises. The limits of this confidence interval are (-0.141, -0.079). Based on this confidence interval, we (can? cannot>??claim that the proportion of all Mäori authorities that have a social media presence is lower than the proportion of all other Maori enterprises that have a social media presence.

Then use the confidence interval calculated for this sampling situation chosen by this student to answer the following research question: How does the proportion of all Maori authorities who use social media to gather feedback or resolve customer concerns compare to the proportion of all Maori authorities who use social media to monitor social media activity of other businesses or customers?

Another question in the business operations survey asked: For which of the following reasons does this business have a social media presence? Select all that apply. 51% of the Mäori authorities surveyed selected "Gathering feedback or resolving customer concerns" and 46% of the Mäori authorities surveyed selected "Monitoring social media activity of other businesses or customers" IS this proportion from within same group? or proportions from two independent groups

A group of marketing students at a large university wants to determine the proportion of first year students who use certain types of social media. The students want their estimate to be within 0.03 of the true proportion with a 95% level of confidence. Two years ago, a similar study determined the proportion to be 0.796. How large of a sample is required?

The researcher also wanted to estimate the proportion of NZ "data businesses" that had a removed register status and the proportion of NZ "science businesses" that had a removed register status. They found that 95 of the 150 NZ "data businesses" had a removed register status and 75 of the 150 NZ "science businesses" had a removed register status. If the researcher constructed VIT bootstrap confidence intervals for the proportion of businesses with a removed register status (one for "data businesses" and one for "science businesses"), the confidence interval based on the sample of NZ "data businesses" will be

A 95% confidence interval for the proportion of sea fans infected on the Las Redes Reef was calculated to be (0.423, 0.615)Based on this confidence interval, which one of the following statements is necessarily TRUE?Group of answer choices51.9% of all sea fans on the Las Redes Reef are infectedIf the study was repeated many times over, and the sample proportion of infected sea fans (p-hat) was recorded each time, then we would expect approximately 95% of the resulting estimates (the p_hat's) to be between (0.423 0.615).51.9% of all sea fans are infected.We don't know exactly what proportion of sea fans on the Las Redes Reef are infected but we know that it is definitely between 0.423 and 0.615.We can be 95% sure that the proportion of sea fans infected on the Las Redes Reef is between 0.423 and 0.615.