MariaIZweird2961 MariaIZweird2961

20-12-2022
Mathematics

Answered

the mean number of words per minute (wpm) read by sixth graders is 98 with a standard deviation of 20 wpm.if 57 sixth graders are randomly selected, what is the probability that the sample mean would differ from the population mean by less than 4.41 wpm? round your answer to four decimal places.

Answer :

Other Questions

a manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.8 years, and standard deviation of 0.6 years. if you randomly purch

life expectancy for men in sri lanka can be taken as normally distributed with a mean of 73.6 years and a standard deviation of 11.2 years. what is the 80th per

gthe number of calls received by an office on monday morning between 8:00 am and 9:00 am has a mean of 8. calculate the probability of getting exactly 2 calls b

Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and observing the sample proportion of

hat is the probability that a random sample of 10 cars will have a mean ore weight of 70.7 tons or more? show your work.

a hospital is trying to cut down on emergency room wait times. it is interested in the amount of time patients must wait before being called back to be examined

your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam. in the past, the test scores have be

Conider n pair of number (x1,y1), (x2,y2),… and (xn,yn). The mean and tandard deviation of c value are c=5 and x=4, repectively. The mean and tandard deviation

the diameters of bolts produced in a machine shop are normally distributed with a mean of 5.66 millimeters and a standard deviation of 0.03 millimeters. find th

bowl 1 contains 10 plain cookies and 30 chocolate chip cookies. bowl 2 contains 20 plain cookies and 20 chocolate chip cookies. an experiment is conducted as fo