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The average monthly rent for a one-bedroom apartment in Chicago was reported to be $1,800 in 2023. A researcher believes that the average rent has increased since then. To test this claim, a random sample of 35 one-bedroom apartments is taken, and the sample mean rent is found to be $1,850 with a standard deviation of $120.  Using a significance level of 0.05, is there enough evidence to conclude that the average rent for a one-bedroom apartment in Chicago has increased? Be sure to show the complete testing process (population, method, sample, results, conclusion). The test output is included in the Sample Step. [12 points]

A 2022 news article reported that 28% of American mothers have three or more children. Pat is interested in performing a hypothesis test to determine if, in fact, the proportion has decreased. They randomly sample 475 American mothers and 108 reply that they have three or more children. Conduct the appropriate hypothesis test at the 5% level of significance to answer the question. Be sure to show the complete testing process (population, method, sample, results, conclusion). The test output has already been added to the Sample Step. [12 points]

What is a confidence interval for a population proportion used for?

Two random samples of electric vehicles were taken, the graphs below show the mileage ranges for vehicles with retail prices of over $50,000 as well as for vehicles with retail prices under $50,000. Which car price, over $50,000 or under $50,000, on average, has the longer mile range?

A random sample of 150 RIT students were surveyed and 72 responded that they own a Stanley drinking cup.  Which of the following statements is true.

Extra Credit: Victimization in prison occurs less often than the general population.

Which measure of center is affected by outliers?

We are interested in the distance an electric vehicle can drive on a single charge (in miles). A random sample of electric vehicles was taken and the following confidence interval was built: (199.2, 250.8) What does this imply?

Females with disabilities are at risk of being violently victimized by ______.

What does the interquartile range (IQR) represent in a five-number summary?