Mathematics, 26.06.2019 16:30, hadilalhjajih
Kelly raised a number 2 to a power and then added 4 to the result. she obtained a sum of 68. to what power did she raise 2?
Answers: 2
Mathematics, 22.06.2019 03:40, calibaby1220
Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. complete parts (a) through (c) below. a. if 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
Answers: 3
Mathematics, 22.06.2019 06:00, krab38
Use the sample data and confidence level given below to complete parts a through d. a research institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1090 and x=549 who said yes. use a 99% confidecne level. a. find the best point of estimate of the population of portion p. b. identify the value of the margin of error e. e= round to four decimal places as needed. c. construct the confidence interval._ < p < _ round to three decimal places. d. write a statement that correctly interprets the confidence interval.
Answers: 3
Kelly raised a number 2 to a power and then added 4 to the result. she obtained a sum of 68. to what...
Mathematics, 21.04.2020 03:54
Mathematics, 21.04.2020 03:54