Fifty-two students identified as male out of 121 responding. Test the claim that fewer statistics students identify as males than females.

Q: Compute a 90% confidence interval for the proportion of American adults who mostly drink diet soda.…

A: We have number of sample n= 2027  Number of favourable x= 485 number of people surveyed most drank…

Q: How many people took part in this survey? * The table shows data about what type of phones that…

A: To arrange the data of two categorical variables, two ways contingency table is used. The first row…

Q: Determine the sample proportion. It has been determined with 95% confidence that the proportion of…

A:

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: A thousand people were sampled and classified according to their smoking and alcohol consumption…

A: It is observed that the variables smoking and alcohol consumption status are categorical.

Q: A random sample of 1400 Internet users was selected from the records of a large Internet provider…

A: Given data A random sample of 1400 internet users was selected  and asked whether they would use…

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: To determine the percentage of patients who follow the advice of their personal physician,…

A: To check :  H0 : P = 0.96   vs H1 :P≥ 0.96 P: population proportion of patients across the nation…

Q: Identify the population and sample. In a random sample of California residents 78 said they had…

A:

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

A:

Q: A student would like to estimate the average number of text messages sent by cell-phone users in a…

A:

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

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

A:

Q: Last year, 41% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information : Population proportion , p = 0.41. Sample proportion , p⏞ = 0.32. Number of…

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: Social Survey is an annual survey given to about 1500 U.S. adults selected at random. A recent…

A:

Q: Disability causes 48% of all mortgage foreclosures. Given that 20 mortgage foreclosures are audited…

A:

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: You plan to conduct a survey to estimate the percentage of adults who have had chickenpox. Find the…

A: It is needed to find the number of people who must be surveyed if one wants to be 93% confident that…

Q: among the 1018 respondents, 428 said that pesticides are "not at all harmful."  What percentage of…

A: Total number of respondents = 1018Total number of respondents said that pesticides are "not at all…

Q: What is the 90th percentile of the following set of numbers: 4, 8, 9, 11, 13, 17, 20?

A: Introduction Percentiles are a statistical measure that divide a set of data into 100 equal parts,…

Q: Hypertension is when an adult is classified as having high blood pressure (above 130 systolic blood…

A: Answer  X =1219 n =3532

Q: A company is interested in seeing if the average call time to its call center is more than/greater…

A: A company is interested in seeing if the average call time to its call center is more than/greater…

Q: Draw a histogram to show candidate A got 32 votes, candidate B got 10 votes and candidate C got 20…

A: Given that Candidate A got 32 votes, candidate B got 10 votes and candidate C got 20 votes.

Q: According to the Pew Research Center, 14% of adults rate basketball as their favorite sport. Your…

A: The proportion of adults who rate basketball as their favorite sport in the general population is…

Q: A middle school wanted to examine if students' sense of school belongingness increased after…

A: From the given information, the variables are students sense of the school belongingness and the…

Q: How many of the 3088 subjects used at least one prescription​ medication?

A: Number of adults aged 57 through 85 years in a survey, n = 3088 p be the probability that an adult…

Q: Describe the sample space that you would use to calculate the probability of the months in a year.

A:

Q: How many different arrangements can be formed from the word STATISTICS?

A:

Q: pproximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain…

A: Given Data: P( like country music)=0.21 P( do not have mild brain damage| like country music)=0.97

Q: An online shop owner believes that 85% of her customers will want to go into a real store. She…

A: It is given that the an online shop owner believes that 85% of her customers will want to go into a…

Q: Create a 95% confidence interval for the true proportion of adult North Americans that have…

A: We have given thatn=3532x=1219Confidence level (c) = 95% =0.95

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.