A marketing firm wants to estimate how much root beer the average teenager drinks per year. A previous study found a standard deviation of 1.24 liters. How many teenagers must the firm interview in order to have a margin of error of at most 0.1 liter when constructing a 99% confidence Interval? Multiple Choice L019 39 1,020 1020 39 1021

Q: Get the following: - Sample size, mean, and deviation - null and alternative hypothesis, confidence…

A: here use t- test  The researcher found a new medicine came out that can fatten and make the body…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.05.       Ho:μ=82.1…

A: When population sd is unknown it is better to use t distribution.

Q: The department of health studied the amount of reported hepatitis C cases in a country. The…

A: The independent variable is age. The dependent variable is number of infected people. We have to…

Q: A social work student is interested in studying the relationship between an adult's age and their…

A: Given that  A social work student is interested in studying the relationship between an adult's age…

Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Vitamin​ D, whether ingested as a dietary supplement or produced naturally when sunlight falls upon…

A:

Q: Find a constant b> 0, so that the function, 0<x<b is a valid pdf. fx (x) ={10 %3| otherwise

A:

Q: SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested…

A:

Q: A statistician claims that the average score on a standardized test of students who major is…

A: Given data : sample size, n =70 sample mean, x̄ = 85 sample standard deviation,s= 4…

Q: and s=3, find the margin of error at a 95% confidence level two decimal places.

A: Solution

Q: 4. Following are boxplots of weekly sales for a food store chain's three similar size and location…

A: From two box plot, We have to answer for mentioned questions by comparing both box plots.

Q: Apply the concept of probability distribution and show your complete solution

A: Given: Year Salary 1996 1659126 1997 1865130 1998 2072715 1999 13870559 2000 15050629…

Q: A +Y. (ii) Let X and Y be independent poisson random variables with respective parameters A and A…

A:

Q: Choose the best answer. Please show the computation and explain the answer.  Which of the following…

A: In question, Given that I) A and B are independent variables with means of 6 and 8, respectively.…

Q: A box contains 5 red and 4 green marbles. A sample of 2 marbles is randomly taken. Let X be the…

A: In question, Given that A box contains 5 red and 4 green marbles. A sample of 2 marbles is randomly…

Q: 11. What is the relationship between the standard deviation of the sample mean se( X), for samples…

A: Standard deviation of sample mean is also know as Standard error

Q: The t-table is to be used to get the critical or tabulated value when conducting a z-test . b. The…

A:

Q: The patient recovery time from a particular surgical procedure is normally distributed with a mean…

A: Let X denote the patient recovery time from a particular surgical procedure is normally distributed…

Q: According to "Reproductive Biology of the Aquatic Salamander Amphiuma tridactylum in Louisiana,"t…

A:

Q: First Choice D C Second Choice C В

A: Total number of Voters = 60 A Arthur B Broznian C Curtis D Doradrea

Q: It takes an average of 9.9 minutes for blood to begin clotting after an injury. An EMT wants to see…

A: The level of significance is 0.01.

Q: In a sample of 530 adults, 445 had children. Construct a 99% confidence interval for the true…

A: We have given that,  Favorable cases (X) = 445 and sample size (n)=530 Then,  We will find the 99%…

Q: The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed,…

A:

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: formula for the sample size needed to estimate a population mean is

Q: In an experiment to investigate the performance of four different brands of spark plugs intended for…

A: The number of brands is r is 4.

Q: Please assist and answer questions: g, h, I, j, k, l Thank you.

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: the mean and standard deviation of the body mass index (BMI) for a sample of 10,215 women who drink…

A:

Q: Let Y(1) be the first order statistic of a random sample of size n from a distri- bution that has…

A:

Q: The department of health studied the amount of reported hepatitis C cases in a country. The…

A: Step-by-step procedure to find the ANOVA table using Excel: In Excel sheet, enter x and y in…

Q: (a) Predict the mean test 2 score for entering freshmen who score a 23 on the test 1. O (Round to…

A:

Q: You have a theory: people who have a high income (X) are generally healthier (Y). You collect some…

A: Correlation is the relation between two variables.

Q: If an analysis of variance is used for the following data, what would be the effect of changing the…

A:

Q: A random sample of 300 college freshmen found that 112 of them own an iPhone.  Find a 95% confidence…

A: Given, Favorable Cases XX = 112112 Sample Size NN = 300300

Q: Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval…

A:

Q: 13. Recently, six single-family homes in San Luis Obispo County in California sold at the following…

A: The random variable sale price follows normal distribution. We have to construct 95% confidence…

Q: (1) For any two events A and B in a sample space S, if BCA, then P(A|B)=1.

A:

Q: An article in the Journal of Sound and Vibration (Vol. 151, 1991, pp. 383-394) described a study…

A:

Q: Answer the following 12 multiple choice questions by selecting the correct answer. (1 points for…

A: Since, the question number is not specified, we'll be answering the first three question. Please…

Q: Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution…

A: Given Mean=50 Standard deviations=15

Q: A AND B BE TWO EVENTS. SUPPOSE THAT P{A}

A: Given that P(A)=0.38 and P(B)=0.49 A) Condition for Mutually Exclusive: P(A and B)=0 Consider, P(A…

Q: A game has 49 green balls and 1 red ball in a bag, and you will randomly select one ball from the…

A: Given: Numer of Green balls = 49Number of Red balls = 1

Q: Setup: A research laboratory was developing a new compound for the relief of severe cases of hay…

A: Given information:

Q: 2. Let (X,Y) be a continuous bivariate random variable having the joint probability density function…

A:

Q: Let X1, X2, ..., X, represent a random sample from a population with a gamma(2, B) distribution,…

A:

Q: Test of Homogeneity of Variances Levene Statistic df1 df2 Sig. Q60: How old were you Based on Mean…

A: Solution: The output for the test of homogeneity of variances is given.

Q: C. Choose the letter that corresponds to the correct answer. 1. In testing hypotheses, what test…

A: (1)  In testing hypothesis, if population variance (σ2) or population standard deviation (σ) is…

Q: Suppose there is a bowl of 22 Hershey's Miniatures candy bars on the table containing 3 Mr. Goodbars…

A:

Q: 3) Let A <0 be a parameter. Show that the function if r 20 f(x) = if a < 0 is a probability density…

A: Solution

Q: 14. In general, the null and alternative hypotheses are, A. additive B. correlated C. multiplicative…

A: Given: MCQ's

Q: The weekly chocolate milk consumption of 40 randomly selected children is represented in the…

A: