Select the correct response. a) Given the same sample data, the margin of error in a 90% confidence interval would be smaller / larger than the margin of error in a 95% confidence interval. b) Given the same sample proportion, the margin of error for a sample of 250 individuals would be smaller/ larger than the margin of error for a sample of 500 individuals.

Q: If n = 340 and p^=0.92, find the margin of error at a 90% confidence level E= Give your answer to…

A: Given,n=340p^=0.921-p^=1-0.92=0.08α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: Use the given confidence interval to find the margin of error and the sample mean. .734, .760

A: From the given information, the confidence interval is (0.734, 0.760). It can be expressed in,

Q: Suppose we want to estimate the proportion of teenagers (aged 13-18) who are lactose intolerant. If…

A: Given information Error = 4% = 0.04 Confidence level = 0.95

Q: A political action group wants to conduct a poll to determine what percentage of people will vote…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: When 460 junior college students were surveyed, 100 said they have a passport. Construct a 95%…

A: Given that there are 460 junior college students and 100 said they have a passport. That is, n=460…

Q: What is the relationship between confidence intervals and hypothesis testing? When testing Ho: μ =…

A: Given: Confidence interval=90% Level of significance, a= 1-0.90=0.10

Q: If n=17, ¯xx¯ (x-bar)=40, and s=6, find the margin of error at a 99% confidence level (use at least…

A: Givenn=17x=40s=6confidence level = 99%

Q: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level E=

A: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level

Q: f n = 243 and ˆpp^ = 0.267, construct a 95% confidence interval. Give your answers to three…

A: Given, (1-α)100% = 95%  α= 0.05 Zα2 =Z0.025  = 1.96 Using Excel function=NORMSINV(0.025)

Q: Suppose we want to estimate the proportion of teenagers (aged 13-18) who are lactose intolerant. If…

A: Given information Error = 2% = 0.02 Confidence level = 0.95

Q: Find the margin of error for the given confidence level.

A: Margin of error :  In a confidence interval, the range of values above and below the sample…

Q: If n = 200 and p^ = 0.64, find the margin of error at a 95% confidence level.

A:

Q: n=31, ¯xx¯(x-bar)=30, and s=5, construct a confidence interval at a 98% confidence level. Assume the…

A:

Q: Construct the 94% confidence interval estimate of the population proportion ? if the sample size is…

A:

Q: Based on a sample of approximately 600 nonsmokers and 200 smokers, estimate the true difference…

A:

Q: If n=160 and ˆp (p-hat) =0.48, find the margin of error at a 99% confidence level

A: Given Data: p^=0.48n=160   We know that, p^-pp^(1-p^)n~ Normal(0,1)

Q: Use the given confidence interval to find the margin of error and the sample mean. (15.3,22.3)

A: We have to find sample mean and margin of error..

Q: Suppose we want to estimate the proportion of teenagers (aged 13-18) who are lactose intolerant. If…

A: According to the provided information, The z score at 95% confidence interval from the standard…

Q: packer produces 1,200 packages of ham per shift, how many packages should the Quality Control area…

A: To find the confidence level of 95%.

Q: If n=320 and ˆpp^ (p-hat) =0.26, find the margin of error at a 95% confidence level

A:

Q: A random sample of 600 voters in Centreville indicated that 90 of them believed their congressional…

A: Formula for confidence interval for population proportion : CI =p^ ± E  Where ,  p^ is sample…

Q: (a) If researchers decide on a 4.2% margin of error for a 95% confidence interval. What sample size…

A: From provided information, Sample proportion is (p̂) = 50% i.e. 0.5 The sample size can be…

Q: If we wanted to reduce the margin of error to 3.5 per cent, how big would our sample ze have to be…

A: We have given that,  Margin of error (E) = 3.5% = 0.035 and confidence level = 95% = 0.95 Then,  We…

Q: If n=130 and ôp (p-hat) =0.93, find the margin of error at a 99% confidence level Give your answer…

A: Here, the margin of error for proportion p^ is to be calculated. The formula is given by, z*p^1-p^n,…

Q: If n=12, ¯xx¯(x-bar)=44, and s=5, find the margin of error at a 99% confidence level

A: Given: margin of error for a 99% confidence interval. n=12 x¯(x-bar)=44 s=5

Q: If n=270 and p (p-hat) =0.93, find the margin of error at a 90% confidence level Give your answer to…

A:

Q: Elly and Drew work together to collect data to estimate the percentage of their classmates who own a…

A: Given that Elly and Drew work together to collect the data to estimate the percentage of their…

Q: Given the information: the sampled population is normally distributed, X– = 36.5, σ = 3, and n = 20.…

A: Given that

Q: If n=270 and ˆpp^ (p-hat) =0.59, find the margin of error at a 99% confidence level Give your…

A: Given  n=270, pcap=0.59, alpha=0.01 Zcritical=2.578 at alpha=0.01 We want to find margin of error

Q: If n=24, ¯xx¯ (x-bar)=50, and s=9, find the margin of error at a 95% confidence level (use at least…

A: Given,n=24x¯=50s=9degrees of freedom(df)=n-1df=24-1=23α=1-0.95=0.05α2=0.025t0.025(23)=2.069…

Q: If n=530 and ˆpp^ (p-hat) =0.75, find the margin of error at a 90% confidence level Give your…

A: Givenn=530p^=0.75confidence level=90%

Q: If n=25, 7(x-bar)=48, and s=4, find the margin of error at a 80% confidence level

A: The sample size is 25, sample mean is 48, and sample standard deviation is 4. The degrees of freedom…

Q: A Gallup poll asked a sample of Canadian adults if they thought the law should allow doctors to end…

A: (a) The sample proportion of Quebec adults who would allow doctor-assisted suicide is, The critical…

Q: In a harvest of 50 watermelons, farmers prefer at least 72% of watermelons to be classified as…

A:

Q: If n=27, x(x-bar)=40, and s=14, construct a confidence interval at a 98% confidence level. Assume…

A: Question is solved.

Q: If n=170 and ˆpp^ (p-hat) =0.23, find the margin of error at a 99% confidence level Give your…

A: Find z-critical value:…

Q: If n=32, ¯xx¯ (x-bar)=49, and s=4, find the margin of error at a 95% confidence level (use at least…

A:

Q: If n=490 and ˆpp^ (p-hat) =0.54, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=12, ¯xx¯(x-bar)=48, and s=6, find the margin of error at a 98% confidence level

A: From the provided information, Sample size (n) = 12 Sample mean (x̄) = 48 Standard deviation (s) = 6…

Q: IF n=23, x-bar = 39, and s=3, find the margin of error at a 80% confidence level. Give answer to two…

A:

Q: How many subjects would be needed to ensure that a 95% confidence interval estimate of BMI had a…

A: Given data set is28,21,37,38,24,28,38,47,27,32,36,43sample size(n)=12confidence level=95%Margin of…

Q: Find the 98% confidence interval for the true difference in population proportions, pˆ A − pˆ B.

A: Given that For drug A, sample size n1 = 50, number of animals showed undesirable side effects, X1 =…

Q: Compare the “prop. contained” value from the chart to the confidence level associated with the…

A: Given information: The output of confidence interval for proportion is given.

Q: Given a confidence interval {21.98, 28.64 and a mean of 25.31, the margin of error is 6.66. True or…

A: A confidence interval of population mean, µ, in terms of sample mean and margin of error, can be…

Q: If n=380 and p (p-hat) =0.49, find the margin of error at a 99% confidence level Give your answer to…

A: Answer - If n = 380,   P^ = 0.49                  99% confidence interval         ⇒ α =1 - 0.99 =…

Q: A member of the Lottery Commission requests a 90% confidence interval estimate but with a smaller…

A: The margin of error depends on the three factors: Level of confidence: The margin of error…

Q: (d) Use the combined data of 80 students, construct a 95% confidence interval estimate of the…

A: Given that  Total students=n=40+40=80 Number of pass students=X=28+32=60

Q: If n=570 and ^p(p-hat) =0.5, construct a 99 percent confidence interval. In order to use technology,…

A: Here it is given that ,  Sample size , n = 570. Sample proportion (p⏞) =0.5  , Confidence level  =…

Q: If n=10, ¯xx¯(x-bar)=44, and s=8, find the margin of error at a 80% confidence level

A:

Q: If n=360 and ˆp(p-hat) =0.69, find the margin of error at a 95% confidence level

A:

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.