Many high school students take the AP tests in different subject areas.  In 2007, of the 144,796 students who took the biology exam 84,199 of them were female.  In that same year, of the 211,693 students who took the calculus AB exam 102,598 of them were female ("AP exam scores," 2013).  Estimate the difference in the proportion of female students taking the biology exam and female students taking the calculus AB exam using a 90% confidence level. (show work)

Q: The proportion of individuals in the United States who reported being “very happy” in 2014 was…

A:

Q: Many high school students take the AP tests in different subject areas. In one year, of the 144,140…

A: given data  n1 = 144140   x1 = 84545p^1 = x1n1 = 84545144140 = 0.5865 n2 = 216298    x2 = 126501p^2…

Q: A website reports that 70% of its users are from outside a certain country. Out of their users from…

A: FIND EXPLANATION BELOW

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Unusual value: The Z-value is said to be Unusual if the Z is greater than 2 or less than –2. From…

Q: A recent survey of 537 California college students found that 481 had taken an online class in the…

A:

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: A study sample was recruited to examine whether a smoking cessation program may be successful in the…

A: The objective of this question is to construct a 95% confidence interval for the true percentage of…

Q: Find the proportion of the respondents who said that closing local papers would hurt civic life a…

A: Given that, No. of respondents (n) = 1001  No. of respondents said it would hurt civic life a lot…

Q: What is the test statistic? Round your answer to three decimal places. Click…

A:

Q: A senator wishes to estimate the proportion of United States voters who favor abolishing the…

A: Given data  99% confidence interval for sample proportion.  E = 0.03 n = ?

Q: A car manufacturer estimates that 25% of the new cars sold in one city have defective engine mounts.…

A: Given information:A car manufacturer estimates that 25% of the new cars sold in one city have…

Q: In a survey of middle school students, 70% play basketball and 40% play basketball and football. Of…

A:

Q: n 1995 a magazine reported the results of a poll of adult Americans in which it asked, "Have you…

A:

Q: A federal report indicated that 17% of children under age 6 live in poverty in Nevada, an increase…

A: Given data, p=17%=0.17 E=2%=0.02 z-value at 99% confidence is Zc=2.576 n=?

Q: Use the Plan, Solve and Conclude steps in answering this question

A:

Q: A professional marketing survey involves product recognition in New York and California. Of 558 New…

A: We have to test claimm..

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

Q: According to Inc.com, 79% of job seekers used social media in their job search in 2018. Many believe…

A: a) The null and alternate Hypothesis are H0 : p≤0.79Ha : p>0.79 The sample proportion is…

Q: Suppose that a poll taken 10 years ago found that 56% of parents spank their children. Suppose a…

A: In a poll 10 years ago it is found that 56% of parents spank their children.

Q: A report from 2012 states that 45% of American adults were obese. In this report, adults were…

A:

Q: In a survey of 1536 adults, 36% responded "yes" to the survey question. How many adults answered…

A: From the provided information, Sample size (n) = 1536 36% responded “Yes” to the survey question.…

Q: A pharmaceutical company conducts a study where 50 patients are given a drug. They find that 10…

A: Sample is the subset of the population.

Q: BCD Travel wants to estimate the population proportion of adults who favor historical sites for…

A: p^ = 59% = 0.59Sample size = 24086% confidence level

Q: In 1995, it was determined that 78% of US citizens supported a ban on household aerosols. Thinking…

A: To find: 1.Test statistics 2.p-value

Q: Maci is a social networking maniac! Although she prefers Instagram, she also spends a lot of time…

A: Introduction A variable is a no., characteristic which can be counted or measured.

Q: A taste-testing survey of Zing Farms showed that 2/3 of the people surveyed preferred the taste of…

A:

Q: Out of 3,900 colleges surveyed, 50% reported that SAT scores were not used as a high consideration…

A:

Q: To determine if patrons are satisfied with performance​ quality, a theater surveys patrons at an…

A: From the provided information, Sample size (n) = 100 70% of these surveys indicated dissatisfaction…

Q: In a survey of 1000 students it was found that 840 own a cell phone, 450 own an MP3 player and 370…

A:

Q: According to the Centers for Disease Control and Prevention, in May 2020, 10,847,778 coronavirus…

A: To find the percentage of people who tested positive for COVID-19 between the start of the pandemic…

Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105. In China, the…

A: It is been asked to test whether the percent of girls born in China is 46.7. The appropriate test to…

Q: Ten HR majors had an average grade of 94 on an exam. Fourteen business majors averaged 86, while six…

A: Given problem Given that   Ten HR majors had an average grade of 94 on an exam. Fourteen business…

Q: The premiere of Game of Thrones' seventh season set a series record of 10.1 million viewers tuning…

A: Suppose μd is the difference of the mean number of people viewing live and the mean number of people…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.