A survey of 78 men found that 10 have a social media account. Another survey of 51 women found that 26 have a social media account. Is the percentage of women that have a social media equal to men based on a-level of 0.07?

Q: When 345 HS students were surveyed, 125 said that they completed a driver's education class prior to…

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Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

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: 3. In a Gallup Pool, 52% of 1038 surveyed adults said that second hand smoke is "very harmful". What…

A: Following information is given:   Total number of people survey = 1038 Percentage of people who said…

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

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Q: condition. Find the lower cutoff score (number of berries which will go for juice).

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the bottom…

Q: From a large number of actuarial exam scores, a random sample of 200 scores is selected, and it is…

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Q: Do 8% of Dallas citizens commute to work? A survey on commuting by car was done on a random sample…

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Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: According to recent data, 33% of people are left handed. In a sample of 200 people, how many would…

A: Answer: From the given data, Let X: Left handed people Sample size (n) = 200 P(left handed people) =…

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: Let x be a total number of applicants with a Math SAT score.Then, it is given that 32% of x had a…

Q: f the score of 3 courses for a student who studied at a university are 81, 62, 74 with credit hours…

A: Solution: The scores of three courses for a students are  X= 81, 62 and 74 The credit hours  that is…

Q: What is the percentile rank of a bag that contains 1025 chocolate​ chips?

A: The mean is 1252 and the standard deviation is 129.

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: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

Q: At the local college, a study found that students earned an average of 8.5 credit hours per…

A: Given, the average credit hour per semester is 8.5. The sample size is 127 students.

Q: Experts claim that 10% of murders are committed by women.  In a random sample of 67 murders, 10 were…

A:

Q: The World Health Organization analyzed generic drugs in 45 countries. It collected 3,575 samples.…

A: Given data: The World Health Organization analyzed generic drugs in 45 countries. It collected 3,575…

Q: Gap, Express, Zara, and America Online are just a few of the many companies interested in knowing…

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

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Q: on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is…

A: We have to find mean  for students who guess at all  correct answers..

Q: A researcher thinks over 47% of the cars through an intersection are white. She records cars for an…

A: From the provided information, A researcher thinks over 47% of the cars through an intersection are…

Q: The Bureau of Labor Statistics keeps track of occupational injuries in various categories. In a…

A: Given, Salary workers mean fatal injuries = 4600 Self-employed mean fatal injuries = 1044

Q: In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74…

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Q: A man is 80% sure how much he loves 5 females (player, player J) but he wants to make sure he’s 99%…

A: A man is 80% sure how much he loves 5 females (player, player J) but he wants to make sure he’s 99%…

Q: Last week a gumball machine dispensed 10 white gumballs and 16 other gumballs. Considering this…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is…

Q: According to recent data, 12 percent of people are left handed. In a sample of 20 people, how many…

A: Answer: Using the given data, Let X denotes the number of people who are left handed P(left handed)…

Q: A software company is interested in improving customer satisfaction rate from the 54% currently…

A: Let p be the population proportion of customer satisfaction rate.Given that,Population proportion…

Q: The percentage of people who have white blood cell counts over 10,500 is

A: To determine the percentage of people who have white blood cell counts over 10,500, we need to know…

Q: The mean of 200 observations was 80, later on, it was found that two  observations were misread as…

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Q: In a survey, the median household income in a country was found to be £27000, and the mean household…

A: Given: Mean=53000Median=27000

Q: onse variable showed three options: The company plans to hire and add to the number of employees,…

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Q: A software company is interested in improving customer satisfaction rate from the 74% currently…

A:

Q: About 40% of Jayden's texts are to his brother. 14. If Jayden sent 1500 texts last month, about how…

A: Given that  40% of Jayden's text to his brother  N=1500 Find the number he send to his brother

Q: Fewer than 91% of adults have a cell phone. In a reputable poll of 1214 adults, 86% said that they…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether fewer…

Q: What proportion of the general population has an IQ of 70 or less?

A: It is an important part of statistics. It is widely used.

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

A:

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.