Atest score of 48.4 on a test having a mean of 66 and a standard deviation of 11. find the z-score corresponding to the given value and use the z-score to determine whether the value is significant. consider a score to be significant if its z-score is less than -2.00 or greater than 2.00. round the z-score to the nearest tenth if necessary. a. -1.6; not significant b.-17.6; significant c. -1.6, significant d. 1.6; not significant

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Can you me find the missing length. i attached an image.

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.