vickie6717 vickie6717

23-12-2022
Mathematics

Answered

a given exam has a normal distribution with a mean of 70 and a standard deviation of 10. a sample of size 25 is selected. what percentage of the time would you expect the mean of this sample size to fall below 66?

Answer :

Other Questions

find the z-score for the value 62, when the mean is 79 and the standard deviation is 4.

Why in this case would we expect the sample size to be small? (Mark all that might apply:) There limited amount of time that bat keepers maybe able to devote to

the number of pieces of cat food in a one-cup scoop is approximately normally distributed with a mean of 344 pieces and a standard deviation of 16 pieces. if a

the lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days and a standard deviation of 15 days. in what range would yo

a bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean of 210.0 and a standard deviation of 50.0. if an applicant i

the edwards's theater chain has studied its movie customers to determine how much money they spend on concessions. the study revealed that the spending distribu

iq is normally distributed with a mean of 100 and a standard deviation of 15. a) suppose one individual is randomly chosen. find the probability that this perso

the test for the equality of two population variances is based on group of answer choices the difference between the 2 population variances. the difference betw

a local department store estimates that 10 percent of its customers return the merchandise they purchase. let the random variable r represent the number of retu

if the residuals violate the assumption of normality, we expect that a. the sample was not taken randomly. b. confidence intervals may be unreliable. c. least s