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Mathematics, 22.01.2021 14:10 kedjenpierrelouis
Abid buys some bags of buttons.
There are 23 buttons or 24 buttons or 25 buttons or 26 buttons in each bag.
The table gives some information about the number of buttons in each bag.
The total number of buttons is 580 Find the value of x
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Mathematics, 21.06.2019 22:50, Yangster9305
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
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Abid buys some bags of buttons.
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