WEEK 12 Homework.pdf WEEK 12 Homework NAME: \( \qquad \) DATE: \( \qquad \) CONTEXT: Paranormal and Housing Market Do majority of Americans believe in the paranormal? A research conducted by Huffington post concer ine this topic revealed \( 45 \% \) of the population do. Reaftorcom conducted its own investigation to see if homebuyers' decision to buy a house were affected by rumors or news of "hauntings" or any "paranormal activities". They sampled 1000 people using SPS and they discovered 357 were hesitant to purchase a house linked to a paranormal activity. 1. Is \( 45 \% \) a parameter or statistic? Explain. 2. What is the sample proportion ( \( \hat{p} \) or \( p \cdot h a t) \) ? 3. Is a normal model a good fit for the distribution of the sample proportion? Show your calculations. 4. Calculate the standard error (SE) of this sample. 5. Does increasing the sample size (n) affect the standard error (SE). Explain. 6. Estimate the true proportion of the population who believes in the paranormal by calculating the confidence interval at a \( 95 \% \) confidence level. State your conclusion using proper course vocabulary.
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- The 45% figure mentioned as the portion of the population that believes in the paranormal is a result of research conducted by Huffington Post. This figure represents a characteristic of the entire population, thus it is considered a parameter. Show more…
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