You select a random sample of 150 people at a medical convention attended by 1,

Question

You select a random sample of 150 people at a medical convention attended by 1, 918 people. Within your sample, you find that 80 people have traveled from abroad. Based on this sample statistic, estimate how many people at the convention traveled from abroad. Would you be more confident of your estimate if you sampled 300 people? The number of people at the convention traveled from abroad is 1055. (Round to the nearest whole number as needed.) Would you be more confident of your estimate if you sampled 300 people? Yes No

Explanation / Answer

estimate of number of people travelled abroad

= 80/150 * 1918

= 1023

yes since will decrease the standard error from mean

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