Which one of the sampling methods listed in the response options is used in the scenario below? A 4th grade teacher wants to explore  a newly implemented learning activity for helping classroom students better understand math concepts.  The teacher administers a pre- and post-test to students in her own class and to the class of a colleague that also teaches fourth grade at the school.  A. Cluster B. Convenience C. Stratified D. Systematic

Q: Suppose the Humane Society claims that 30% of U.S. households own cats. You believe your community…

A: Given: p=30%=0.30n=300p^=23%=0.23

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: By using the standard normal table, the critical value zα2 at the 99% confidence level is, 2.576.…

Q: health care provider conducted a survey to measure customer satisfaction. It sent out surveys to…

A: Non response bias :  It occurs when,  Participants in survey are unable to respond or they have no…

Q: Dr. Spike is a big fan of Bojangles and is particularly interested in the popularity Its celebrated…

A: Given that - Dr. Spike is a big fan of Bojangles and is particularly interested in the popularity of…

Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

A:

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: Cybersecurity is a critical business issue that demands the attention of business and IT executives.…

A: Given The data is as follows: Sample proportion, p^=0.67

Q: Use these data to construct a 90% confidence interval to estimate the population mean value. Assume…

A:

Q: Choose the correct answer below. O A. Quiz scores from a college level statistics course are…

A: Given Solution:

Q: What is the most important thing to remember when choosing a sample? a. Samples should be chosen at…

A: We have given that the statement about to the sample. It is a part of population.

Q: sample st. dev   Point estimate =                     Margin of the Error =   Show the Formula that…

A: The point estimate can be obtained using the excel formula “=AVERAGE(A1:A28)”. From the Excel…

Q: Q3: SPORTS A company wants to determine whether wearing a new tennis shoe improves jogging time.…

A: Given  A company wants to determine whether wearing a new tennis shoes improves jogging time.

Q: You are the operations manager for an airine and you are considering a higher fare level for…

A: It is given that margin of error (E) is 0.015 and the confidence level is 0.90.

Q: Online gamers are divided into different age groups. A random sample from each group is selected and…

A: From the given information we want to know method of sampling.

Q: Why does this a situation call for a matched-pairs analysis?

A: Test is that whether there is difference between the measurements.

Q: She divides her constituency into three income classes: low-income households, middle- households,…

A: 4. In stratified sampling, the population is divided in such a way that it is homogeneous within the…

Q: researcher decided to study the dietary habits of community college students. She did so in a way to…

A: Solution: The sampling methods can be classified into two types 1) Probability or random sampling…

Q: A business magazine article claims that a majority of women age 22 to 35 who work full time would be…

A: given data claim : p >0.5n = 1000x = 540p value = ?

Q: Sherwin Williams sells paints in hardware stores across the U.S. The company maintains a large sales…

A: From the given information, the data values are

Q: In order manufacturer is claiming that its new 2021 SUV model will have better gas mileage than the…

A: (a) The null and alternative hypothesis is, H0:u=30H1:u>30              (right tailed/one tailed)…

Q: Researchers at a drug company are testing the duration of a new pain reliever. The drug is normally…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: Suppose the Humane Society claims that 30% of U.S. households own cats. You believe your community…

A: We want to test the hypothesis

Q: A middle school wanted to examine if students' sense of school belongingness increased after…

A: From the given information, the variables are students sense of the school belongingness and the…

Q: A Senior Housemaster wishes to investigate whether some residents in his Hall are Homosexuals and…

A: Given A Senior Housemaster wishes to investigate whether some residents in his Hall are Homosexuals…

Q: Looking at whether how much Disney+ a person watches (3 hours, 2 hours, or 1 hour a day) and what…

A: Here, the dependent variable is the overall happiness of a person watching Desney+ and the beverage…

Q: For this discussion, you will come up with an example of a situation in which two means would need…

A: Describe a possible study that could be conducted to compare two groups means:

Q: Q.No.3. Explain the advantage of mutiple sampling plan over single or double sampling. Answer:

A: Multiple sampling plan is an extension of single and double sampling plan.

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given,margin of error(E)=0.025Assume sample proportion(p^)=0.5α=1-0.90=0.1α2=0.05Z0.05=1.645   (from…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: The random variable X follows binomial distribution. The confidence level is 90%. The margin of…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: a) From the given information, Margin error = 0.055 Assume sample proportion = 0.5   Critical value:…

Q: An online shop owner believes that 85% of her customers will want to go into a real store. She…

A: It is given that the an online shop owner believes that 85% of her customers will want to go into a…