A population has a mean = 151 and a standard deviation a = 24. Find the mean and standard deviation of the sampling distribution of sample means with sample size n= 60. The mean is u; =, and the standard deviation is o =O (Round to three decimal places as needed.)

The table shows the scores of 20 people who took a paramedics licensing test. Find the mean and standard deviation for these data. The mean of the data is The standard deviation is approximately Round to three decimal places as needed.) Score Frequency 7 1 3 6 2 1 (.... NKR888 74 75 79 86 98 0

Assume the data set described is normally distributed with the given mean and standard deviation, and with n total values. Find the approximate number of data values that will fall in the given range. Mean-8 Standard deviation-1.5 n-45 Range: 6.5 to 9.5 In this case, we expect about 52 data values to fall between 6.5 and 9.5.

What provides a measure of the variance caused by random, unsystematic differences? a. ​the error term ​b. the F ratio ​c. MS ​d. SStotal

Use the sample data set to evaluate each of the steps in determining the sample standard deviation   23 20 14 35 28 Give an exact answer, not an approximation, for each step except the standard deviation. round the standard deviation to the nearest hundredth..  =   =  variance, s2 =  standard deviation, s =

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 12% and highest 12​%, indicating levels that are too low or too​ high, respectively. a. The bone density scores are ​(Use a comma to separate answers as needed. Round to two decimal places as​ needed.)

Suppose baby kittens' weights are normally distributed with a mean of 11.4 and a standard deviation of 2.1. The Z-score tells you how many units above the average (if Z-score is positive) or below the average (if Z- Score is negative) any particular baby kitten's weight is. Find the baby kitten weight that corresponds to the following Z-scores. Use the formula Z where u is the mean, o is the standard deviation, and X is the baby kitten weight. a. Z = = 0.07, X = b. Z = 1.63, X =

Consider a sample with data values of 7, 19, 8, 15, and 11. Compute the variance and standard deviation. sample variance sample standard deviation Need Help? Read It 3:19 PM 99°F Sunny 9/3/2021 99+ P Type here to search R