The Department of Economic and Community Development (DECD) reported that in 2009 the average number of new jobs created per county was 450. The department also provided the following information regarding a sample of 5 counties in 2010. 
a.Compute the sample average and the standard deviation for 2010.
b.We want to determine whether there has been a significant decrease in the average number of jobs created. Provide the null and the alternative hypotheses.
c.Compute the test statistic.
d.Compute the p-value; and at 95% confidence, test the hypotheses. Assume the population is normally distributed.
Definitions:
Solicitor's Customary Searches
Legal inquiries made by a solicitor to ensure there are no legal impediments to a property sale.
Execution Searches
Investigations conducted to determine if there are any outstanding legal judgments or executions against a property or individual.
Zoning Searches
Investigations into the zoning regulations applicable to a particular parcel of real estate to determine permissible uses.
Environmental Audit
A systematic, documented examination and evaluation of a facility's or organization’s environmental performance.
Q9: The Department of Economic and Community Development
Q11: Consider a population of five weights identical
Q12: A continuous random variable may assume<br>A)any value
Q13: In order to estimate the difference between
Q36: Refer to Exhibit 7-3. The standard deviation
Q41: Independent random samples taken at two local
Q46: It has been suggested that night shift-workers
Q76: A sample of 20 items from
Q136: The time it takes a worker on
Q143: The average life expectancy of tires