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: poll in June 2020 found that 81% of American parents believe that virtual learning instead of…

A: Given data number of success , x= 822.0 sample size, n = 1081 population…

Q: The placement test for a college has scores that are normally distributedwith μ= 400 and σ= 75. If…

A:

Q: A survey of 62 men found that 12 have a social media account. Another survey of 57 women found that…

A: Men are taken as group 1. Women are taken as group 2.   Given: n1=62x1=12n2=57x2=40α=0.07

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Givensample size(n)=265x=216p^=xn=216265=0.815α=0.10

Q: The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An…

A:

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

A: Let A be the event that student had Math SAT of 700 or more Therefore, PA=0.36 find The probability…

Q: The General Social Survey asked a sample of 1294 people whether they performed any volunteer work…

A: The null and alternative hypothesis, This is the right-tailed test, for α=0.05 The critical value…

Q: A hot topic of debate is whether the legal driving age should be raised to eighteen. From a random…

A: It is tested whether majority of the Americans believe the legal driving age should be raised to 18.…

Q: Three-fourth of the students in the class have an average lQ of 120 and the rest have an average IQ…

A:

Q: .If you are at the 90th percentile in terms of GPA, then 90% of the sample has a lower GPA than you.…

A: Percentile : Percentile is the number such that certain percentage of data fall below that number.…

Q: An IQ score for which 15% of the population has a higher score and 85% have a lower score…

A:

Q: Out of a sample of 38 people, 23 people enjoyed biking and 15 enjoyed running. Test the claim that…

A: Given that,  x = 23, n = 38 The sample proportion of people prefer biking is, Null and alternative…

Q: A fast food chain surveyed a random sample of students to determine what pizza they prefer. Cheese…

A:

Q: Among college students, the proportion p who say they're interested in their congressional…

A: The random variable interest rate follows normal distribution. We have to test whether the…

Q: The median yearly salary for a police dispatcher in a large city was $44,528. If the 25th percentile…

A: a. The median yearly salary for a police dispatcher in a large city was $44528.

Q: If a person’s z score equals -2.02, what is their percentile?

A: Given problem Given that   Given Person's z score =  -2.02 Using the Standard Normal Table ( Z Table…

Q: In a sample of 45 men, 27 said that they had less leisure time today than they had 10 years ago. In…

A:

Q: During the summer of 2020, about 68% of San Diego young adults played a game called Animal Crossing.…

A:

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: In the general population, Democrats are estimated to have an average mental health index score of…

A: The summary statistics of mental health index for the general population is mentioned in the table.…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: Given X=185 n=260

Q: After taking a series of 4 classroom examinations, John obtained a mean score of 82. How much score…

A: Mean is a part of measures of central tendency.

Q: In fall 2014, 36% of applicants with a Math SAT of 700 or more were admitted by a certain…

A:

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: A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male…

A: Given: A child dying from an accidental poisoning.  It is showed that out of 1830 children between…

Q: A random study reported that 74% of very-low-birth-weight babies graduate from high school by age…

A: Given that, The probability of very high low birth weight babies graduate from high school by age 20…

Q: A random sample of 180 men who took the driving test found 103 passed. A similar. sample of 225…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Given:  Among the college students the proportion p who say they’re interested in their…

Q: In a sample of 47 men, 36 said that they had less leisure time today than they had 10 years ago. In…

A: We have to perform test for difference in two proportion.

Q: Among college students, the proportion p who say they’re interested in their congressional…

A:

Q: A recent polls show that 61% of adult Americans are comfortable with the legalization of marijuana,…

A:

Q: Among college students, the proportion p who say they're interested in their congressional…

A:

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Givensample size(n)=255x=172p^ =172255=0.675α=0.05

Q: Mr. White collected data from his eighth grade class on whether they prefer the zoo or the museum.…

A:

Q: uppose the proportion of all college students who have used marijuana in the past 6 months is p =…

A:

Q: In 2001, the Gallup poll found that 81% of American adults believed that there was a conspiracy in…

A: Given that, x=634,n=1039 The sample proportion is,

Q: In a survey 300 adults were interviewed, 123 said they had yearly medical checkup. Find the 95% for…

A: Sample size is n = 300 Number of adults who had yearly medical checkup, X = 123 The critical value…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: From the provided information, Sample size (n) = 250 From which 180 students say they’re interested…

Q: A research report from an independent-measures study states that there are significant differences…

A: The degrees of freedoms are 2 and 36.

Q: A Harriss poll taken surveyed 2016 adults and found that 423 of them had one or more tattoos. can…

A: The hypotheses for the test is given below.Null hypothesis:H0: p = 0.25Alternative hypothesis:H1: p…

Q: A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more…

A: State the hypotheses.

Q: State the null hypothesis H0 and the alternative hypothesis H1 . H0: H1: (b) Determine the type of…

A: Given that  Sample size n =270 Favorable cases x =194 Sample proportion p^=x/n  =194/270 =0.7185…

Q: According to the U.S. Department of Labor, the median annual salary in 2003 for a physical therapist…

A:

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

A: All the given data is shown in the tree diagram

Q: In fall 2014, 38% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: LetA - Percent math S A T score of less than 700 or more in all applicants.B – Percent math SAT…

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050females, 746…

A: From the provided information,

Q: A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more…

A:

Q: Rose randomly surveyed 50 students and found that 15 had a part-time job. If there are 750 students…

A:

Q: The sales force at a certain company successfully closed 94 out of 200 sales calls. What was their…

A:

Q: In a survey of a sample of 1050 teenagers, 17% said they like to watch soccer.

A: Given that  In a survey of a sample of 1050 teenagers , 17% said that they like to watch soccer.…

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.