Riverbend City online news advertises that it is read longer than the national news. The mean for national news is 8 hours per week. The following sample of the Riverbend City online news readers is: 5, 7, 6, 2, 4, 8, 5, 4, 18, 21, 8, 7, 4, 5, 6.

1. State the nondirectional hypothesis.
2. State the critical tfor a = .05(two tails)
3. Answer the following: Is the length of viewing for Riverbend City online news significantly different than the population mean? Explain

One-Sample Statistics Sad. Error N Mean Deviation Mean Time 15 7.3333 5.23268 1.35107 One-Sample Test Test Value - 8 95% Confidence Interval of Sig. 12- Mean the Difference df tailed Difference Lower Upper Time -.493 14 .629 -.65667 -3.5644 2.2311 One-Sample Effect Sizes Standardizers Point 95% Confidence Interval Estimate Lower Upper Time Cohen's d 5.23268 -.127 -.633 383 Hedges' correction 5.53554 -.120 -.599 .362 a. The denominator used in estimating the effect sizes. Cohen's d uses the sample standard deviation. Hedges' correction uses the sample standard deviation, plus a correction factor