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5. B. In the US 69% of high school graduates attend colleges. A randomly selected sample...
help please 5. B. In the US 69% of high school graduates attend colleges. A randomly...
help please
5. B. In the US 69% of high school graduates attend colleges. A randomly selected sample of such 100 high school graduates is selected. Find the continues probability of P( X < 70) will attend colleges? I
According to a survey, 86% of high school students plan to attend college. Suppose 15 high...
According to a survey, 86% of high school students plan to attend college. Suppose 15 high school students are randomly selected. (round all answers to four decimal places) a.) Find the probability that all of them plan to attend college. Answer b.) Find the probability that exactly eight of them plan to attend college. Answer c.) Find the probability that at most eleven of them plan to attend college. Answer d.) Find the probability that at least twelve of them...
In the workforce of a large factory, 70% of the employees are high-school graduates, 8% are supervisors, and 5% are both supervisors and high-school graduates. If the employee is not a high-school graduate, what is the probability he is a supervisor?
In the workforce of a large factory, 70% of the employees are high-school graduates, 8% are supervisors, and 5% are both supervisors and high-school graduates. If the employee is not a high-school graduate, what is the probability he is a supervisor?
A report says that 82% of British Columbians over the age of 25 are high school graduates. A survey of randomly selected...
A report says that 82% of British Columbians over the age of 25 are high school graduates. A survey of randomly selected residents of a certain city included 1290 who were over the age of 25, and 1135 of them were high school graduates. Does the city's survey result provide sufficient evidence to contradict the reported value, 82%? Part i) What is the parameter of interest? A. The proportion of 1290 British Columbians (aged above 25) who are high school...
Statistics A randomly selected sample of 40 graduates from Ohio colleges with a bachelor’s degree is...
Statistics A randomly selected sample of 40 graduates from Ohio colleges with a bachelor’s degree is shown below. The data lists the amount of student loan debt owed. 29425 26742 22609 25344 21382 25064 29750 24947 26518 24554 26091 28984 29222 29732 25521 25939 26025 27457 26391 26450 31579 26177 25844 26946 26278 20211 28318 18969 27822 25218 29353 26430 25333 25000 25689 26989 25999 26999 26444 25001 8. Use the above data to fill in the frequency distribution shown...
An analysis of the Business School graduates found that 211 out of 310 randomly selected graduates...
An analysis of the Business School graduates found that 211 out of 310 randomly selected graduates used a statistical inference technique during their first year of emplyment. (a) Calculate a 90% confidence interval for the proportion of graduates who used a statistical inference technique within the first year of their employment. Present your work. (b) Interpret the confidence interval. (c) If a new follow-up study is to be undertaken, what sample size should be taken in order to estimate the...
A survey of 500 randomly selected high school students determined that 87 play organized sports (a)...
A survey of 500 randomly selected high school students determined that 87 play organized sports (a) What is the probability that a randomly selected high school student plays organized sports? (b) Interpret this probability. (a) The probability that a randomly selected high school student plays organized sports is Round to the nearest
In a group of 135 high school graduates, 65 studied mathematics, 76 studied history, and 37...
In a group of 135 high school graduates, 65 studied mathematics, 76 studied history, and 37 studied mathematics and history. If one of these students is randomly selected, find the probability that the student, if he or she took Mathematics, did not take History. Answer using 4 decimals.
A school newspaper reporter decides to randomly survey 10 students to see if they will attend...
A school newspaper reporter decides to randomly survey 10 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Based on past years, she knows that 22% of students attend Tet festivities. We are interested in the number of students who will attend the festivities. a) Find the probability that at most 3 students will attend. (Round your answer to four decimal places.) b)Find the probability that more than 2 students will attend. (Round your answer...
In a sample of 13 randomly selected high school seniors, the mean score on a standardized...
In a sample of 13 randomly selected high school seniors, the mean score on a standardized test was 1199 and the standard deviation was 166.0. Further research suggests that the population mean score on this test for high school seniors is 1017. Does the t-value for the original sample fall between -toos and boos? Assume that the population of test scores for high school seniors is normally distributed The t-value oft- fall between -0.99 and long because (Round to two...
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5. B. In the US 69% of high school graduates attend colleges. A randomly selected sample of such 100 high school graduates is selected. Find the continues probability of P( X < 70) will attend colleges? I
An analysis of the Business School graduates found that 211 out of 310 randomly selected graduates used a statistical inference technique during their first year of emplyment. (a) Calculate a 90% confidence interval for the proportion of graduates who used a statistical inference technique within the first year of their employment. Present your work. (b) Interpret the confidence interval. (c) If a new follow-up study is to be undertaken, what sample size should be taken in order to estimate the...
A survey of 500 randomly selected high school students determined that 87 play organized sports (a) What is the probability that a randomly selected high school student plays organized sports? (b) Interpret this probability. (a) The probability that a randomly selected high school student plays organized sports is Round to the nearest
In a sample of 13 randomly selected high school seniors, the mean score on a standardized test was 1199 and the standard deviation was 166.0. Further research suggests that the population mean score on this test for high school seniors is 1017. Does the t-value for the original sample fall between -toos and boos? Assume that the population of test scores for high school seniors is normally distributed The t-value oft- fall between -0.99 and long because (Round to two...
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