Mathematics, 18.10.2019 18:00 rihanna79
thirty-two percent of all americans drink bottled water more than once a week (natural resources defense council, december 4, 2015). suppose you have been hired by the natural resources defence council to investigate bottled water consumption in st. paul. you plan to select a sample of st. paulites to estimate the proportion who drink bottled water more than once a week. assume the sample proportion of st. paulites to estimate the proportion who drink bottled water more than once a week is 0.32, the same as the overall proportion of americans who drink bottled water more than once a week. use z-table. a. suppose you select a sample of 540 st. paulites. show the sampling distribution of p (to 4 decimals) ク b. based upon a sample of 540 st. paulites, what is the probability that the sample proportion will be within 0.08 of the population proportion (to 4 decimals). probability= . c. suppose you select a sample of 230 st. paulites. show the sampling distribution of (to 4 decimals) =| .0201 0 d. based upon a smaller sample of only 230 st. paulites, what is the probability that the sample proportion will be within 0.08 of the population proportion (to 4 decimals) probability = .9907 e. as measured by the increase in probability, how much do you gain in precision by taking the larger sample in parts (a) and (b) rather than the smaller sample in parts (c) and (d)? reduced by have gain in precision by increasing the sample.
Answers: 1
Mathematics, 21.06.2019 16:50
The table represents a linear function. what is the slope of the function? –6 –4 4 6
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Mathematics, 21.06.2019 19:00
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
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Mathematics, 21.06.2019 21:00
You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up
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thirty-two percent of all americans drink bottled water more than once a week (natural resources def...
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