You are conducting a study to see if the probability of catching the flu this year is significantly different from 25%. With Ha : p ≠ 25% you obtain a test statistic of z=−1.54 Find the P-value accurate to 4 decimal places. P-value =

Use the model we created using technology in Example 6 to predict the gas consumption in 2011. Is this aninterpolation or an extrapolation?

Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 60. It is predicted that by 2030, one in five U.S. citizens will be elderly. How much greater will the chances of meeting an elderly person be at that time? What policy changes do you foresee if these statistics hold true?

Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 59. If you meet five U.S. citizens, what is the percent chance that four are elderly? (Round to the nearest thousandth of a percent.)