A sample of 30 observations provides the following statistics: 
a.Calculate and interpret the sample correlation coefficient 
.
B)Specify the hypotheses to determine whether or not x and y are significantly correlated.
C)At the 5% significance level,what is the conclusion to the test using the critical-value approach? Explain.
D)At the 5% significance level,what is the conclusion to the test using the p-value approach? Explain.
Definitions:
Social Classes
Categories of individuals within a society, distinct by their socio-economic status, wealth, education, and occupation, impacting their power and privileges.
Amusement
Activities, events, or experiences designed to entertain and provide enjoyment or laughter to participants or observers.
Labor-Saving Devices
Labor-saving devices are tools, machines, or equipment designed to reduce the amount of manual labor and time required to complete various tasks or chores.
Q7: The accompanying table shows the regression results
Q8: Exhibit 16-7.It is believed that the sales
Q11: Exhibit 16.5.The following data shows the demand
Q18: Which of the following Excel functions is
Q39: A Type I error is committed when
Q48: For the exponential model ln(y)= β<sub>0</sub> +
Q51: An analyst conducts a hypothesis test to
Q61: Exhibit 13.3 The ANOVA test performed for
Q71: In a multiple regression based on 30
Q79: For a given sample size n,_.<br>A)Decreasing the