Mathematics, 03.09.2019 03:30 help1219
Asurvey was conducted that asked 1004 people how many books they had read in the past year. results indicated that x overbarequals12.5 books and sequals16.6 books. construct a 95% confidence interval for the mean number of books people read. interpret the interval.
Answers: 2
Mathematics, 21.06.2019 21:40
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
Mathematics, 21.06.2019 22:00
White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.
Answers: 2
Mathematics, 22.06.2019 04:30
In his stamp album ,jamal has 48 new stamps and 72 used stamps. which ratio can be represented by 3/5
Answers: 1
Asurvey was conducted that asked 1004 people how many books they had read in the past year. results...
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