A national health survey weighed a sample of  530  boys aged  6 - 11  and found that  78  of them were overweight. They weighed a sample of  522  girls aged  6 - 11  and found that  61  of them were overweight. Can you conclude that the proportion of boys who are overweight is greater than the proportion of

Q: Individuals at risk for colon cancer are advised to have a colonoscopy beginning at age 50. The…

A: Given that: Total number of patients = 250   Colon cancer: yes Colon cancer: no Total…

Q: Forty-three randomly selected students were asked if they take Chemistry. The test statistic for the…

A: Claim :p<0.67 Test statistics z= -1.971

Q: orty studens ha dass at an ney can speak. Complete the table. Foreign Language Gender Chinese…

A: Explanation of the answer is as follows

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: A survey of 78 men found that 10 have a social media account. Another survey of 51 women found that…

A: Given Information: Women: Sample size (n1) = 51 Out of which X1 = 26 have a social media account.…

Q: given as + Choose th

A: The margin of error is the amount of random sampling error in the results of a survey. The larger…

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

A:

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: State the hypotheses.   Let p1 denotes the population proportion of men who own cats. Let p2 denotes…

Q: A polling agency claims that over 40% of adults shop for a gift within a week of an event.  In a…

A: We have given that p = 40% = 0.40  n = 2730x = 1130p̂ = x/n = 1130/2370 = 0.4139Significance level…

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: In a poll of 556 human resource​ professionals, 42.3​% said that body piercings and tattoos were big…

A: Number of human resource​ professionals (n) = 556 Probability of success (p) = 42.3% = 0.423

Q: Many young men in North America and Europe (but not in Asia) tend to think they need more muscle to…

A: It is given that,Sample mean = 2.35.Population standard deviation, sigma is 2.5.The sample size, n…

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

A:

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: The lottery commissioner's office in a state wanted to find if the percentages of men and women who…

A: It is given that the sample of 490 men, in that 150 play the lottery often and the sample of 315…

Q: The national society of acupuncturists asked a random sample of 450 adults their opinion about…

A:

Q: Suppose a certain virus (sorry!) affects 0.3% of the population. A test used to detect the virus is…

A: 0.3% of 100000 population have virus.  0.3*100000/100= 300  people have virus.  88% have virus and…

Q: please answer a, b, c  B. H0: P OR μ H1: P OR μ  C. T or z statistic

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: find the relative risk for hypertension in females 50+ years versus females <50 years of age. (keep…

A: Now complete table from given information    Developed Hypertension  not develop Hypertension…

Q: A survey reported that 77% of registered voters in California approved of allowing two people of the…

A: Define the following events: A:  a register voter who approve gay marriage. B: a registered voter…

Q: A sample of 425 voters aged 18 – 25 were asked whether they thought Social Security benefits should…

A: Given information- Significance level, α = 0.05 Let, p1 = proportion of voters aged 18 – 25 were…

Q: Suppose you take a sample of 25 Reese's pieces. The proportion of orange is 0.55. What is the…

A:

Q: fragrance free laundry soap.

A: To test the percentage of customers who prefer fragrance free laundry soap.   This can be done using…

Q: The student government took a poll on a policy they would like to suggest to the dean. The…

A: Given that,

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: A researcher wants to conduct an experiment to determine which environment is best suited for…

A: The objective is to find out the number of blocks in an experiment conducted on 30 university…

Q: Drowning in bathtubs is a major cause of death in children less than 5 years old. A random sample of…

A: We Have to find Estimate the percent of all parents of young children who use baby bathtubs.

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: Suppose an internet marketing company wants to determine the percentage of customers who click on…

A: Margin of error=E=5%=0.05 , Confidence level=C.I=94%=0.94

Q: a. Identify the population(s). of those who take the drug actually get headaches. 5% of those who…

A: It is given that a deug company that an allergy medication causes headaches in 5% of thise who take…

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A: Given,n=321x=22p^=xnp^=22321=0.0685α=0.01

Q: A car dealership is deciding the proportion of cars they will order with cloth seats. You have been…

A: We have to find sample size required for given margin of error.