Mathematics, 24.12.2019 06:31, xxbloomxx184p8jqjd
Acertain forum reported that in a survey of 2009 american adults, 23% said they believed in astrology.
(a) calculate a confidence interval at the 9% confidence level for the proportion of all adult americans who believe in astrology. (round your answers to three decimal places.)
interpret the resulting interval.
a. we are 99% confident that the true population mean lies above this interval.
b. we are 99% confident that the true population mean lies below this interval.
c. we are 99% confident that this interval does not contain the true population mean.
d. we are 99% confident that this interval contains the true population mean.
(b) what sample size ould be required for the width or a 99% ci to be at most 0.05 irrespective of the value of p? round your answer up to the nearest intege
Answers: 2
Mathematics, 21.06.2019 16:30, danielmurillo28
If c(x) = 4x โ 2 and d(x) = x2 + 5x, what is (cxd)(x)
Answers: 2
Mathematics, 21.06.2019 20:50, RidhaH
Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d
Answers: 1
Mathematics, 21.06.2019 21:00, Anybody6153
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1โ0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
Acertain forum reported that in a survey of 2009 american adults, 23% said they believed in astrolog...
English, 30.09.2019 05:30
SAT, 30.09.2019 05:30
Mathematics, 30.09.2019 05:30
History, 30.09.2019 05:30
Mathematics, 30.09.2019 05:30
English, 30.09.2019 05:30