save According to a report, the standard deviation of monthly cell phone bills was $48.17 three years ago. A researcher suspects that the standard deviation of monthly cell phone bills is different from today. (a) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type | error. (c) Explain what it would mean to make a Type II error. .. . (a) State the hypotheses. Ho Hy: (Type integers or decimals. Do not round.) ten cces