subject
Mathematics, 05.02.2020 09:57 ulilliareinhart2

The wall street journal reported that the age at first startup for 55% of entrepreneurs was 29 years of age or less and the age at first startup for 45% of entrepreneurs was 30 years of age or more. a. suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. show the sampling distribution of p where p is the sample proportion of entrepreneurs whose first startup was at 29 years of age or less. b. what is the probability that the sample proportion in part (a) will be within ±.05 of its population proportion? c. suppose a sample of 200 entrepreneurs will be taken to learn about the most important qualities of entrepreneurs. show the sampling distribution of p where p is now the sample proportion of entrepreneurs whose first startup was at 30 years of age or more. d. what is the probability that the sample proportion in part (c) will be within ±.05 of its population proportion?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?
Answers: 1
question
Mathematics, 21.06.2019 20:10
Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm
Answers: 1
question
Mathematics, 21.06.2019 20:30
Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.
Answers: 1
question
Mathematics, 21.06.2019 21:30
Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)
Answers: 1
You know the right answer?
The wall street journal reported that the age at first startup for 55% of entrepreneurs was 29 years...
Questions
question
Mathematics, 24.06.2019 16:00