Mathematics, 10.10.2019 03:30 hamidaakter936848
Which of the following interpretations of the mean is correct? a. the observed number of hits per game will be equal to the mean number of hits per game for most games. b. in any number of games, one would expect the mean number of hits per game to be the mean of the random variable. c. over the course of many games, one would expect the mean number of hits per game to be the mean of the random variable. d. the observed number of hits per game will be less than the mean number of hits per game for most games.
Answers: 2
Mathematics, 21.06.2019 17:00
The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.
Answers: 1
Mathematics, 22.06.2019 02:00
Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?
Answers: 1
Mathematics, 22.06.2019 02:20
The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.
Answers: 3
Mathematics, 22.06.2019 04:10
You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in:
Answers: 2
Which of the following interpretations of the mean is correct? a. the observed number of hits per g...
Mathematics, 15.12.2021 03:50
Mathematics, 15.12.2021 03:50
History, 15.12.2021 03:50
Mathematics, 15.12.2021 03:50
Mathematics, 15.12.2021 03:50
Social Studies, 15.12.2021 03:50
Mathematics, 15.12.2021 03:50