Mathematics, 27.02.2020 19:06 lopezhailey317
An analyst surveyed 150 stores to find out the price of replacement cell phone batteries. Some stores sold the batteries
at prices higher than the mean of $23.70. The sample proportion of the expensive stores is 0.22. What is the population
proportion of stores labeled as expensive? Use a 95% confidence level, with z = 1.96.
11.1% to 18.7%
12.8% to 23.2%
15.4% to 28.6%
0.187% to 0.321%
Answers: 2
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Mathematics, 22.06.2019 01:10, graymonky12
The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x
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An analyst surveyed 150 stores to find out the price of replacement cell phone batteries. Some store...
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