Home theater expansion capable for cinema-like soundâand a seamless home theater designâwhen you combine this product with a center channel speaker and any Direct/ReflectingÂ® speaker system. Magnetically shielded speakers allow for speaker placement in close proximity to your TV without interfering with the picture quality. SyncomÂ® computer tested to ensure one of the highest levels of quality and reliability in the audio industry.
Use the following format to find a z-score: z = X - Î¼ / Ï. This formula allows you to calculate a z-score for any data point in your sample. 1  Remember, a z-score is a measure of how many standard deviations a data point is away from the mean.2  In the formula X represents the figure you want to examine.his will start out the calculations for a z-score. 1  For example, in our sample of tree heights we want to find out how many standard deviations 7.5 is from the mean of 7.9. 2  Therefore, you would perform the following: 7.5 - 7.9.
Z scores are especially informative when the distribution to which they refer is. normal. In every normal distribution, the distance between the mean and a given Z. score cuts off a fixed proportion of the total area under the curve. Statisticians have. provided us with tables indicating the value of these proportions for each possible Z. score (this table is on the back). So, to apply this, letâs say that we have a population of adults that we are interested. in with a mean score on some kind of test of 75 with a standard deviation of 15.