According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4. To test this result a random survey of 60 individuals who have credit cards was conducted. The survey only includes the number of credit cards per participant. The results of the survey are attached below. (a) What is the variable of interest in this study? Is it qualitative or quantitative? (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a = 0.05 level of significance. Click here to view the data from the survey. Number of Credit Cards Per Participant Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Click here to view the table of critical t-values. (a) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is It is a variable. (b) Do the results of the survey imply that the mean number of cards per individual is less than 4? Use the a= 0.05 level of significance. State the null and alternative hypotheses. ANNNNNWONN ONWANNAWW CNNNAW -JWWA NNGANNWORN DANNYNWWA Ho: H1 : (Type integers or decimals. Do not round.) Determine the test statistic. (Round to two decimal places as needed.) Approximate the P-value. The P-value is in the range Make a conclusion regarding the hypothesis. The P-value is than the level of significance. the null hypothesis. There sufficient evidence to claim that the mean number of credit cards is