Mathematics, 14.10.2019 19:00 mrfishyyyy
The pew forum on religion and public life reported that in a survey of 2003 american adults, 25% said they believed in astrology. (a) calculate and interpret a confidence interval at the 99% confidence level for the proportion of all adult americans who believe in astrology. (b) using the point estimate of p obtained from the survey, what sample size is needed to be 99% confident that the error in estimating the true value of p is less than 0.025? (c) what sample size would be required if you wish to be at least 99% confident that the error in estimating p is at most 0.025, irrespective of the value of ˆp?
Answers: 1
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What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)
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1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25
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Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.
Answers: 2
The pew forum on religion and public life reported that in a survey of 2003 american adults, 25% sai...
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