3. According to a 2013 study done by the Internet Research Group, the mean lime students under the age of 18 spend on Twitter per day is 300 minutes with a standard deviation of 3'0 minutes. A group of concerned parents believe that this time is greater than 300 minutes per day. A sample of 100 students under the age of 18 was taken and had a mean time spent on Twitter of 330 minutes per day. By answering the following questions, you'll conduct a hypothesis test at the 0.05 signicance level to test the parents' claim that the mean time spent in hours by students is greater than 300 minutes. Use correct symbols in your answers. a) b) c} d) 11) What is the population mean? What is the sample mean? What are the null and alternative hypotheses? Hui H1: Find the man and standard deviation of the sampling distribution of sample means. (Use meet symbols) Find the test statistic. (Calculator is UK) Find the Pvalue. (Calculator is OK) Based on your answer in p311: e or 1', make a decision about this hypothesis test. Interpret your decision. Do you think the sociologist has enough evidence to support her claim? Use full sentences