About 2% of the population has a particular genetic mutation. 900 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 900.

Q: Summers et al (2021) hypothesised that people believe that pain is influenced by socio-economic…

A: Any ANOVA that employs more than one qualitative independent variable is referred to as a factorial…

Q: Use the above picture to anwer these questions. If we count off 2.5% of the dots in the LEFT tail,…

A: The provided information is as follows: sample, n=480mean, μ=80.144

Q: The mean incubation time of fertilized eggs is 19 days. Suppose the incubation times are…

A: b)According to given question,    We have:-    X~N(19,1) μ=19 σ= 1 area between two times (or raw…

Q: If 500 persons were sampled, determine the number of persons who are expected to share their…

A: It is given that  p = 55% = 0.55 n = 500

Q: Why is it ethically important to control confounding variables? Only one answer A) Because risk is…

A: Confounding variables: The confounding variables are those variables which have an unwanted effect…

Q: Use the given data values​ (a sample of female arm circumferences in​ centimeters) to identify the…

A: Given data: 39.1, 34.1, 32.4, 43.9, 41.5

Q: The table below shows what direction houses in the community are facing and whether they are 1-Story…

A: A. The total number of 2-Story houses is, n(2-Story) = 110.

Q: A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs.392., what…

A: Given that, selling price, SP= Rs.392 gain percent, Gain%= 22.5%   We know that gain percent is…

Q: default (not repay). The bank currently has 250 loans outstanding. (a) In order to use a binomial…

A:

Q: Can movie rental revenue be predicted? A movie studio wishes to determine the relationship between…

A:

Q: A manufactured is evaluating two types of equipment for the fabrication of component. A random…

A: Givenn1=50x1=6   n2=80x2=8

Q: -8 -6 -0-2- -0-1- 0.4 -0:3-

A: From the given graph, we have  Mean, μ = -6 Standard deviation, σ = 1

Q: Plot the density curve.

A: Given X~U(4,6)

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 8 type A balls, 5 type B…

A: given data,8-type A balls 5- type b balls 7- type c balls =20  total balls

Q: The mean attention span for a ten-year-old in the USA is 19.10 minutes with a standard deviation of…

A: From the provided information, Population mean (µ) = 19.10 Population standard deviation (σ) = 2.03…

Q: Dr. Maddan's eye drops are supposed to cause significant reduction is eye redness. The following…

A: 5% significance level : Alpha = 0.05 One -tailed  Ho : eye redness reduction is dependent upon…

Q: 1. Indicate how many 4-digit numbers smaller than 6,000 can be formed from the digits 2, 4, 5, 6, 8,…

A: All questions are related to permutations NPr = N!/(N- r)!

Q: Walmart has become the largest supermarket in America, and as Walmart grows, its net sales also…

A: Given, Walmart's Net Sales data per quarter from 2015 to 2021 as Year Quarter Net Sales$×108…

Q: Question 4 of 4, Step 3 of 4 An insurance company wants to know if the color of an automobile has a…

A:

Q: Calculate a 90% confidence interval for pulse rate given that you sampled 10 people and found a mean…

A: given data=62σ=18normal distrubtion n=10 people CI=0.90α=1-0.90=0.10df=n-1= 10-1=9

Q: Consider the perfectly competitive market for steel. Assume that, regardless of how many firms are…

A:

Q: Suppose that the consumer has available income equal to Y, and the price of the goods is…

A: Income = Y Price of the goods Good 1 = p1 Good 2 = p2 The utility optimization/ maximization problem…

Q: Patty has just completed her second semester in college. She earned a grade of A in her 5-hour…

A: The given information shows the scores and grades of the Patty’s.

Q: A researcher takes a random sample of n = 10 of 5th grade students from a local school district and…

A: Given that A researcher takes a random sample of n = 10 of 5th grade students from a local school…

Q: Consider the multiple regression model with three independent explanatory variables under the…

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

Q: 1. Suppose that at a large state university graduate research assistants are paid by the hour. Data…

A: Given Information: Mean μ=550 Standard deviation σ=80

Q: The mean score for one of the classes was found to be 76.5. Which class do you think is more likely…

A: If the distribution is symmetric then mean=median=mode.

Q: Based on a sample of n = 28, the least-squares method was used to develop the prediction line ₁ = 8…

A:

Q: Two major automobile manufacturers have produced compact cars with the same size engines. We are…

A: Two major automobile manufacturers have produced compact cars with the same size engines. We are…

Q: In the mining industry coal is transported from the mine to the plant using hopper rail cars. The…

A: given data normal distributionμ = 74σ = 0.48

Q: The linear correlation between violent crime rate and percentage of the population that has a cell…

A: Given that The linear correlation between violent crime rate and percentage of the population that…

Q: A particular fruit's weights are normally distributed, with a mean of 3/1 grams and a standard…

A: given data normal distribution μ=371σ=11P(386<x<397)=?

Q: You want to make a confidence interval for the true average number of users of the video server at…

A: Note: There are two intervals for finding the confidence interval for true population mean: t…

Q: In a study in which the null hypothesis has been rejected, we should be aware of the possibility of?…

A: In a study in which the null hypothesis has been rejected, we should be aware of the possibility of-…

Q: Refer to Exhibit 10-30. What is the distribution of the test statistic in this problem? Chi Square…

A: Assumptions for t distribution are given below: Samples are independently and randomly selected…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A: Given n=131, p=22%

Q: The table below shows the income (X) and expenditure (Y) data for 10 households. Please answer the…

A:

Q: d be the next step for a research project?

A: Achievement Group 1 Achievement Group 2 Achievement Group 3 20 19 60 40 25 65 49 20 69 50 29…

Q: Question 6 < Central Limit Theorem for Proportions When you take samples from a population and…

A:

Q: A marketing firm wants to know if there is a difference in the best marketing strategy for new…

A:

Q: The manufacturer of an airport baggage scanning machine claims it can handle an average of 560 bags…

A: Here, mean is 538, standard deviation is 50. Sample is 16. Population mean is 560

Q: 5. Using the data age and wage, predict the wage when age ranges over a grid of points of size 100…

A: The data wage and age are present in defualt in R-studio. The data is created in R in the following…

Q: et X be a total $ amount on a randomly select InstaCart order. The expected value of such order is…

A: Let X be the total amount on a randomly select instaCart order. The expected value of such order is…

Q: Answer the following: 9. How many sandwiches can be made with either white, wheat, or rye bread,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Draw a pie-chart using the following data: Activity No. of hours School 6 Sleep 8 Playing 2…

A: Given data: Activity Number of hours School 6 Sleep 8 Playing 2 Study 4 TV 1 Others 3

Q: Find the market price of a chair, if Shalini paid Rs 3430 after discount of 2%?

A: Given discount = 2% Selling price = Rs. 3430

Q: Suppose the probability of Ann getting a hit in softball is .314. What is the probability that Ann…

A: It is interpreted that Ann has only options of "getting a hit" (defined as success) or "not getting…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: Suppose a random variable X, defines the reading on thermometers.

Q: Determine the area under the standard normal curve that lies between (a) Z= -0.33 and Z= 0.33, (b)…

A: Answer:- Given, standard normal curve with Find the area under the standard normal curve  (a)…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: The mean is 51 pounds and standard deviation is 6.1 pounds.