Mathematics, 26.10.2019 01:43 qveenriles3714
Fifteen years ago 57% of american families had money invested in the stock market. it is believed that this percentage has dropped. to see if this is true, morningstar recently sampled 200 american families and recorded in excel each family’s yes/no answer to the question "do you have money invested in the stock market? ". based on these results, can morningstar declare that the proportion of american families who have money invested in the stock market is now lower than .57 at α=.01? use the excel output above to answer the following question. find the critical value (typically two decimals if zcrit, three decimals if tcrit).
Answers: 2
Mathematics, 21.06.2019 13:10
What is the smallest integer n such that n\sqrt{2} is greater than 20
Answers: 2
Mathematics, 21.06.2019 15:40
Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.
Answers: 1
Mathematics, 21.06.2019 18:30
Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³
Answers: 1
Mathematics, 21.06.2019 18:50
If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?
Answers: 2
Fifteen years ago 57% of american families had money invested in the stock market. it is believed th...
Mathematics, 16.10.2019 01:10
Mathematics, 16.10.2019 01:10
Mathematics, 16.10.2019 01:10