Compute the following sample sizes. Use the appropriate formula.  If necessary, round to the nearest hundredth. In a study of red/green color blindness, 500 men and 2100 women were randomly selected and tested. Among the men, 45 had red/green color blindness. Among the women, 6 have red/green color blindness. Let population 1 be the men and population 2 be the women. a. Construct a 99% confidence interval for the difference between the color blindness proportions of men and women. b. Now interpret this interval. Can we say anything about the proportion of men who are color blind compared to the proportion of women who are color blind?

Q: In a survey conducted recently by ESPN-LA radio in an attempt to find the proportion of residents of…

A: Given: x1=20, n1=42, x2=26, n2=54 a) The pooled proportion is given by,…

Q: Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2. SHow all…

A: Step 1: Objective and ConceptObjective:-To determine the confidence interval for the difference in…

Q: A random sample of nine students took 18, 19, 13, 24, 22, 21, 22, 17, and 25 minutes to complete the…

A:

Q: The figure to the right shows the results of a survoy in which 1013 adults from Country A, 1001…

A: It was found that out of the 1013 adults from country A, 33% of the adults say national identity is…

Q: find the sample size needed to estimate the percentage of democrats who have tattoos. Use a 0.05…

A:

Q: of 3269 adults aged 57 through 85​ years, it was found that 85.7% of them used at least one…

A: The number of people among the 3269 subjects who used at least one prescription​ medication is…

Q: A survey of several 8 to 11 year olds recorded the following amounts spent on a trip to the mall:…

A: The amounts spent on a trip to the mall is 19.36,29.95,7.82,8.36,21.07,14.06,22.22

Q: From a simple random sample of 400 of the 1,395 colleges in our population, it was found that…

A: Given : 1395 colleges in our population  Population Size (N) = 1395 400 colleges selected randomly…

Q: A poll for a statewide election has a margin of error of 2.14 percentage points. How many voters…

A: From the provided information,Margin of error (E) = 0.0214Confidence level = 99%

Q: a. Suppose you are with a health agency that wants to estimate what percentage of Ohioans really has…

A: Hi, we are supposed to answer one question at a time. Therefore, I am answering the question -a.…

Q: Find the sample size necessary for an 80% confidence level with a maximal margin of error E = 0.10…

A: We have given that the average x-bar 3.15, population standard deviation 0.24 and margin of error is…

Q: In a sample of 100,40 said they preferred Pepsi to Coke. A 95% confidence interval for the…

A:

Q: A researcher wishes to determine whether people with high blood pressure can reduce their blood…

A: Treatment group

Q: The data represent a sample of the number of casualties in a road accident for the past several…

A: Solution:   x (x-x) (x-x)2 450 -34.7143 1205.082 509 24.28571 589.7959 609 124.2857…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). In a study…

A: a.

Q: A poll reported 38% support for a statewide election with a margin of error of 1.36 percentage…

A: Proportion of voters who supports for a statewide election Margin of error Confidence level

Q: A tester sampled randomly 150 bolts from a consignment. She noticed a standard deviation 6.2. Given…

A:

Q: In a random sample of 850​ Americans, 385 reported that they work two jobs. Which of the following…

A: The known values are, The sample proportion is,

Q: In a random sample of 1003 US adults, 32% said that national identity is strongly tied to birth…

A: It is given that, 32% of the 1003 adults said that national identity is strongly tied to birth…

Q: In a survey of 3110 adults aged 57 through 85 years, it was found that 87.9% of them used at least…

A:

Q: In a survey of 3015 adults aged 57 through 85 years, it was found that 85.6% of them used at least…

A:

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

A:

Q: We are interested in comparing the average supermarket prices of two leading colas in the Tampa…

A: Given:

Q: If n=41n=41, ¯xx¯=36, and s=9s=9, find the margin of error for a 80% confidence level.

A: Answer - Given, Sample size n = 41,    x  = 36    and s = 9               80% confidence interval…

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 437 green peas…

A:

Q: the following sample was taken from a normally distributed population: 20,27,15,2016,22 and 13. A…

A:

Q: Calculate a 95% upper confidence bound for the mean of a normally distributed population using the…

A: Given that, x = 32289  s = 2846  n=15  For 95% confidence interval,the z value is 1.96

Q: 1992, the women in two statistics classes for students in the liberal arts at a large northeastern…

A: In 1992, the women in two statistics classes for students in the liberal arts at a large…

Q: Use the following information to construct a 90%,95%,& 99% confidence interval : Sample Mean: 111.7…

A:

Q: Suppose we observed 15 successes in a random sample of 60 subjects. What is the 99% confidence…

A:

Q: Each student in a class of 60 was randomly assigned one line of a random number table. Each student…

A: Given data There are total 10 digits [0 – 9] 5 odd digits 1,3,5,7,9 5 even digits 0,2,4,6,8…

Q: What is the source of variability in the random variable? O A. Random errors OB. The sample size C.…

A:

Q: Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and…

A: Out of the given sample of size, n = 20 the number of presidents whose heights were more than their…

Q: Construct a 95% confidence interval for p, - Pɔ. The sample statistics listed below are from…

A:

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

A:

Q: Calculate Tom's point estimate. Given that the estimated standard er- ror of (p1 + p2)/2 is 0.024,…

A: Here use given z critical  value for construction of interval estimate

Q: 3469 adults aged 57 through 85​ years, it was found that 85.6​% of them used at least one…

A: It is given that sample size (n) is 3,469 and p hat value is 0.856.

Q: Mr. Price calculates a 95% confidence interval for the difference between the proportion of Aaron…

A: The 95% confidence interval for P Rodgers - P Mahomes is given as (-0.05, 0.15). When the repeated…

Q: Consider the following sample information randomly selected from two populations. Sample 1: n1 =250,…

A:

Q: Given two independent random samples with the following results: n₂ = 510 n₁ = 685 x₁ = 38 x2 = 287…

A: The given results are: .

Q: An epidemiologist is worried about the prevalence of the flu in East Vancouver and the potential…

A:

Q: f. A sample of 60 Grade 10 students' ages was obtained to estimate the mean lot all Grade 9…

A:

Q: An arborist is interested in determining the mean diameter (in centimeters) of mature white oak…

A:

Q: A sample of freshman takes a reading comprehension test and their scores are summarized below.…

A:

Q: A simple random sample of 1000 people age 18 or over is taken in a large town. It turns out that 223…

A: From the provided information, Sample size (n) = 1000 223 people in the sample are newspaper…

Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the…

A: Given Information: Under age of 18  n1=480 x1=160 Over age of 18 n2=500 x2=140

Q: 2.) A survey of 200 college students revealed that 160 of them eat dessert daily. Construct a 95%…

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.