Suppose a randomly selected sample of n = 50 men has a mean foot length of X = 28.1 cm, and the standard deviation of the sample is 4 cm. Calculate an approximate 95% confidence interval for the mean foot length of men. (Round the answers to one decimal place.) 0.1 X to 2.0 x cm

The scores of a certain population on the wechler intelligence scale for children are thought to be normally distributed, with

Use z scores to compare the given values. Based on sample data, newborn males have weights with a mean of 3263.8 g and a standard deviation of 841.2 g. Newborn females have weights with a mean of 3066.6 g and a standard deviation of 570.2 g. Who has the weight that is more extreme relative to the group from which they came: a male who weighs 1500 g or a female who weighs 1500 g? Since the z score for the male is z = weight that is more extreme. (Round to two decimal places.) and the z score for the female is z = the has the female male

A sample has a mean of M=60 and a standard deviation of s=7.  For this sample, find the z-score for each of the following X values. x=69 x=54 x-72 x=49 x=63 x=52

Use z scores to compare the given values.   Based on sample​ data, newborn males have weights with a mean of 3266.3g and a standard deviation of 851.1g. Newborn females have weights with a mean of 3027.4 g and a standard deviation of 563.5 g. Who has the weight that is more extreme relative to the group from which they​ came: a male who weighs 1600g or a female who weighs 1600 g?   Since the z score for the male is z= _______and the z score for the female is z=_____​, the (female,male) has the weight that is more extreme. ​(Round to two decimal​ places.)

a population of scores has u=44. in this population a score of x=40 corresponds to z = -1.00. What is the population standard deviation?

For a sample with a standard deviation of s=4, a score of X=35 corresponds to Z= -1.25. what is the sample mean?

A population of scores has µ=44. In this population, a score of X= 40 corresponds to z= - 0. 50. What is the population standard deviation?

Use z scores to compare the given values. Based on sample data, newborn males have weights with mean of 3204.8 g and a standard deviation of 770.8 g. Newborn females have weights with a mean of 3066.5 g and a standard deviation of 585.9 g. Who has the weight that is more extreme relative to the group from which they came: a male who weighs 1600 g or a female who weighs 1600 g? Since the z score for the male is z= and the z score for the female is z= the V has the weight that is more extreme. (Round to two decimal places.)

For a population with a mean of u=45, a score of X=54 corresponds to z=1.50. What is the population standard deviation?