Do young ladies ages 12 to 18 years spend more or less money than the national average of $55 with a standard deviation of $8.75 per shopping trip? A local mall took a random sample of 30 shoppers and found that they averaged $64. (a) Check the conditions and choose the correct response. The parameter of interest is not . The sample is not a random sample from the population. The sampling distribution of x is not approximately normal. All conditions are met. (b) The P-value is the area under the curve shaded in which direction? z 5.63 z = 5.63 z 5.63 z 5.63 (c) At = 0.05, choose the appropriate conclusion for this test. (Use a table or technology.) Accept the null hypothesis. Reject the alternative hypothesis. Reject the null hypothesis. Fail to reject the null hypothesis