Mathematics, 18.11.2019 22:31 amberc5110
Customers at costco spend an average of $130 per trip (the wall street journal, october 6, 2010). one of costco's rivals would like to determine whether its customers spend more per trip. a survey of the receipts of 25 customers found that the sample mean was $135.25. assume that the population standard deviation is $10.50 and that spending follows a normal distribution. use standard normal curve area table. a,specify the appropriate null and alternative hypotheses to test whether average spending at the rival�s store is more than $130.b. calculate the value of the test statistic. c.calculate the p-value. dcalculate the critical value
Answers: 2
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Write the fraction 9/50 as a decimal if needed round to the nearest hundredth
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Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10
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Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?
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Customers at costco spend an average of $130 per trip (the wall street journal, october 6, 2010). on...
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