A study was conducted to compare the mean numbers of police emergency calls per eight-hour shift in two districts of Toronto. Samples of 100 eight-hour shifts were randomly selected from the police records for each of the two regions, and the number of emergency calls was recorded for each shift. The sample statistics are listed below: 
Find a 90% confidence interval for the difference in the mean numbers of police emergency calls per shift between the two districts of the city. Interpret the interval.
Definitions:
Scribbled Notes
Hastily or carelessly written down thoughts or information, typically for personal reference.
Formal Reports
Detailed and structured documents presenting information, analysis, or findings, typically used in academic, business, or professional contexts.
Written Medium
A means of communication that involves the representation of language in a textual form, such as books, articles, or online content.
Confidential
Information or documents that are private or secret and not to be shared with unauthorized individuals.
Q5: An airline executive estimates that 25% of
Q26: Which of these options is the best
Q42: Two random samples of sizes 25 and
Q87: For an F distribution test statistic, the
Q87: If a decision maker is concerned that
Q104: In an attempt to compare the starting
Q106: Refer to Life Insurance Narrative. Determine the
Q113: From a sample of 400 items, 14
Q114: Suppose that 56% of all registered voters
Q169: Increasing the sample size, n, will result