Research question: Is the mean score in the population diffe…

Research question: Is the mean score in the population different from 90 points?   H0: μ = 90Ha: μ ≠ 90   The hypotheses above were tested using data from a random sample. Descriptive statistics are presented in the following table:   Descriptive Statistics N Mean StDev   Compute Cohen’s d for the difference between the observed sample mean and hypothesized population mean. Round your final answer to three decimal places.