suppose that 50% of all college students smoke cigarettes. a sample of 12 is selected randomly....
suppose that 50% of all college students smoke cigarettes. a sample of 12 is selected randomly. what is the probability that between 6 and 10 (both inclusive) students smoke? round your answer to four decimal places.
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suppose that 50% of all college students smoke cigarettes. a
sample of 12 is selected randomly....
Suppose that 30% of all college students smoke cigarettes. A sample of 14 is selected randomly....
Suppose that 30% of all college students smoke cigarettes. A sample of 14 is selected randomly. What is the probability that between 6 and 8 (both inclusive) students smoke? Round your answer to four decimal places.
Suppose that 30% of all college students smoke cigarettes. A sample of 16 is selected randomly....
Suppose that 30% of all college students smoke cigarettes. A sample of 16 is selected randomly. . What is the probability that between 5 and 8 (both inclusive) students smoke? Round your answer to four decimal places.
The following represents a binomial experiment. Suppose that 42% of all college students smoke cigarettes. A sample...
The following represents a binomial experiment. Suppose that 42% of all college students smoke cigarettes. A sample of 26 is selected randomly. What is the probability that 12 students smoke? 0.142 10.92 0.420 0.462
At a certain college, 50% of all students take advantage of free tutoring services. A sample...
At a certain college, 50% of all students take advantage of free tutoring services. A sample of 36 students is selected. What is the probability that the proportion of students who take advantage of free tutoring services in the sample is between 0.475 and 0.580? Write only a number as your answer. Round to 4 decimal places for example 0.3748 ). Do not write as a percentage .
Suppose 50% of the population has a college degree. If a random sample of size 673...
Suppose 50% of the population has a college degree. If a random sample of size 673 is selected, what is the probability that the proportion of persons with a college degree will differ from the population proportion by less than 5%? Round your answer to four decimal places.
A preliminary survey shows that 34% of college students smoke. In a class of 37 students,...
A preliminary survey shows that 34% of college students smoke. In a class of 37 students, what is the probability that more than 49% of the students smoke? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability ??
A preliminary survey shows that 31% of college students smoke. In a class of 40 students,...
A preliminary survey shows that 31% of college students smoke. In a class of 40 students, what is the probability that more than 46% of the students smoke? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability
A college research group reported that 46% of college students aged 18-24 would spend their spring breaks relaxing at h...
A college research group reported that 46% of college students aged 18-24 would spend their spring breaks relaxing at home Complete parts a through d below 2009. A sample of 150 college students was selected. a. Calculate the standard error of the proportion. (Round to four decimal places as needed.) b. What is the probability that less than 40% of the college students from the sample spent their spring breaks relaxing at home? P(Less than 40% of the college students...
The grade point averages (GPA) for 12 randomly selected college students are shown on the right....
The grade point averages (GPA) for 12 randomly selected college
students are shown on the right. Complete parts (a) through (c)
below. Assume the population is normally distributed.
2.1, 3.1, 2.6, 1.5, 0.6, 4.0, 2.1, 1.1, 3.6, 0.5, 2.1, 3.4
construct a 90% confidence interval for the population mean
The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) 2.1 below. 1.5 Assume the population is normally distributed. 2.1...
In a psychology class there are 13 men and 12 women. 2 students are randomly selected...
In a psychology class there are 13 men and 12 women. 2 students are randomly selected to present a topic. What is the probability that at least 1 of the 2 students selected is male? Express your answer as a fraction or a decimal number rounded to four decimal places.
A college research group reported that 46% of college students aged 18-24 would spend their spring breaks relaxing at home Complete parts a through d below 2009. A sample of 150 college students was selected. a. Calculate the standard error of the proportion. (Round to four decimal places as needed.) b. What is the probability that less than 40% of the college students from the sample spent their spring breaks relaxing at home? P(Less than 40% of the college students...
The grade point averages (GPA) for 12 randomly selected college
students are shown on the right. Complete parts (a) through (c)
below. Assume the population is normally distributed.
2.1, 3.1, 2.6, 1.5, 0.6, 4.0, 2.1, 1.1, 3.6, 0.5, 2.1, 3.4
construct a 90% confidence interval for the population mean
The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) 2.1 below. 1.5 Assume the population is normally distributed. 2.1...
In a psychology class there are 13 men and 12 women. 2 students are randomly selected to present a topic. What is the probability that at least 1 of the 2 students selected is male? Express your answer as a fraction or a decimal number rounded to four decimal places.
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