Let's say we collect a sample of 500 individuals from a community in Reno and find that 20 of them are HIV positive. We are interested in learning about the proportion of this community that are HIV-positive. We want to test if this proportion is different than 0.03 using the method that we discussed in class. What is the test statistic associated with this test? Note that the sample proportion is the "point estimate" and is called "p-hat" here. Even though we did not cover hypothesis testing for proportions (like this situation), you should be able to choose the correct form of test statistic based on what we discussed in class. Group of answer choices

Q: Make 1 real-life problem with a solution in any of the following topics; 3. Preforming hypothesis…

A: One sample proportion test is used to compare the sample proportion to a specified proportion of the…

Q: What is the sampling error for an estimate of the population proportion, p = 0.36, if the true…

A: We have to find the sampling error for an estimate of the population proportion

Q: The P-value for this sample

A: From part a), the degrees of freedom is 4. The test statistic is 42.37.

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Given information: It is given that the department of health is conducting random drug testing in a…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 104.7 and a standard…

A: According to the provided information, Mean (μ) = 104.7 Standard Deviation (σ) = 15.7

Q: A sample mean has a z= -4.0 on the sampling distribution created from the population of psychology…

A:

Q: What is true about the sampling distribution of the mean retings reported to you by the market firms

A:

Q: Based on historical data in Oxnard college, we believe that 39% of freshman do not visit their…

A: Given Information:p=39%=0.39c=95%=0.95Margin of error, E=3%=0.03

Q: Bf the Petall sales of their products from samples of retail stores. Marketing managers are prone to…

A:

Q: The digital marketing specialist would like to test the claim that the percent of customers who use…

A: Formula : Test statistic

Q: When we are comparing two sample means that are not the same group of individuals, what kind of test…

A: Given that  When we are comparing two sample means that are not the same group of individuals

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Given information: It is given that the department of health is conducting random drug testing in a…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

Q: Consider a simple poll that is measuring the proportion of citizens that hold a particular political…

A:

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: When working with the sampling distribution of a sample proportion, what do we need to require to…

A: Sampling Distribution of a Proportion There are several ways to calculate the sampling distribution…

Q: If you wanted information about a population, it could be impossible to ask everyone. One way to…

A: In any research or in a survey, a population of interest is considered. While it is not possible to…

Q: How can you make your sampling method more reliable? (English Translation: List a way you could make…

A: Introduction: Sampling is done in practical life instead of a population census, in most of the…

Q: What is meant by the statement that the sample mean has a sampling distribution?

A: The parameters that describe a population, like mean, variance, and standard deviation, are already…

Q: Let's examine the mean of the numbers 1, 2, 3, 4, 5, 6, 7, and 8 by drawing samples from these…

A:

Q: Consider the implications of selecting a sample based upon your choice as a researcher and how you…

A: If a sample is selected upon the choice of a researcher then it is expected to have a bias which…

Q: If the sample size is n=16 what is likely true about the shape of the population?

A: Solution:  Central limit theorem: The central limit theorem state that as the sample size increases…

Q: Please help me figure out how to find the P value for the sample.

A: Select a cell outside of the "Observed data" and "Expected data" tables.

Q: Effect of sample size on the sampling distribution. You are planning a study and are considering…

A: The sample size and sampling distribution are two integrally associated concepts in statistics.

Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: The sample mean is a good estimate of the population mean because the lager sample compensate the…

A: It is an important part of statistics. It is widely used.

Q: The sampling distribution mean is equal to the population mean. True False What is the value of the…

A: The sampling distribution mean is equal to the population mean. True False  And  What is the value…

Q: estimate the sample size

A: An estimate of sample size: The appropriate sample size for estimating the mean of a variable from…

Q: From the given scenario, define the population proportion. In 1776, the Continental Congress sent…

A: The question is about population parameter.Introduction :Population proportion :1 ) It is a…

Q: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

A: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

Q: You are told that the proportion of those who answered "no" to a political survey is 0.60, and that…

A: Given Information: Proportion of those who answered "no" to a political survey is 0.60 i.e., p=0.60…

Q: should their sample size be?

A: here use solvin's formula

Q: Suppose multiple samples of size nn are drawn from a population with a mean of 50. The mean is…

A: Population mean =50

Q: if the 90% Ci for the population mean is (-4.58, 6.54) what is the sample mean O a. can't be found O…

A: According to the given information, we have 90% C.I. for the population mean = (-4.58, 6.54)