inspecting the weights of a sample of packages of ground beef from a particular grocer. An SRS of 12 packages are weighed (in pounds) according to the NIST procedures. The table shows each of the actual weichts along with the weight listed on the package label. carry out the test to see if the mean difference  in the measured weight minus the labels weight is less than 0 Table is available in the attached image.

Q: Professor Brown interviewed his students to learn how improve his teaching. What is one disadvantage…

A: It encourages response bias.

Q: what statistic should be used? What is the value of that calculated statistic?    Please explain!

A: The variable should be measured is increase in knowledge after the students participated in an…

Q: Why would you use a low alpha?

A: here use basic of hypothesis testing and type 1 and type 2 error

Q: A random sample of failure time of 49 kidney transplants (in months) is given: 5.27 43.72  3.96…

A: Gamma Distribution: A continuous variable x taking non-negative real values is said to follow a…

Q: Please group these statistical notations/concepts into two groups, those related to samples and…

A: Given information: Some statistical notations/concepts are provided as: Parameter, n, σ2, Statistic,…

Q: That is the percentage of individual adult females, now, what is the percentage of samples of 64…

A: The mean is 79 kg and the standard deviation is 22 kg.

Q: A pharmaceutical company is trying to determine if a new drug is more effective than the current…

A: Given that: Old drug New drug Successes 419 Successes 261 Observations 500 Observations 300…

Q: How many rows or observations are there in the msleep.csv data set?

A: Step 1: Step 2: Step 3: Step 4:Here we can clearly see that there are 84 rows in this dataset hence…

Q: A consumer advocacy group is doing a large study on car rental practices. Among other things, the…

A: It is given that the mean monthly mileage of cars rented in the U.S. this year is greater than last…

Q: For this exercise, you must input thew following data: Variable name: Low-sugar diet; label:…

A:

Q: Mention some of the factors that affect choosing a sample over a population when conducting a…

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

Q: ung distributibn of the sample means

A: The given graph is, Observe that the given graph looks like  normal distribution . For a normal…

Q: As items come to the end of a production line, an inspector chooses which items are to go through a…

A: From the provided information,P(Defective)=5%, P(Inspected|Defective)=90%, P(Inspected|Good)=20%

Q: A 2015 article in the American Journal of Public Health reports findings from a study on adherence…

A: Given information: The regression equation is as given below: ln(odds of adherence) = β0 + β1x1 +…

Q: O Direct standardization

A: There are two methods of standardisation commonly used in epidemiological studies, and these are…

Q: Identify two statistical methods other than a census for obtaining information.

A:

Q: Consider the parameter(s) of interest in this study. • Label the appropriate parameter(s) of…

A: It was stated that  Klien et al (2011) conducted the following study to determine the effect of…

Q: In an election poll Mark recieved 17, 576,866 votes what is the continous data

A: Continuous data is the set of data, whose values can take any value with in a finite or infinite…

Q: What is the statistical symbol for sample mean? What is the statistical symbol for population Mean?

A: Sample mean The sub-set of the mention population is identified as a sample. In addition, the sample…

Q: Given the data set \ 50,5,12,13,15,18,22,6\ Determine the 75th percentile.

A: Given that The data are 50,5,12,13,15,18,22,6 75% percentile  Q3=value of (3(n+1)/4)th observation

Q: PAGASA provided the mean annual rainfall (in millimeters) in Cagayan Province from years 2000 2015.…

A: Confidence interval is the range of estimates for an unknown parameter.

Q: What statistical tool should be used when you want to compare 4 refrigerators to know if there is a…

A: Given Information: Consider the information in which you want to compare 4 refrigerators.

Q: 2. What is a convenient way to collect sports data from a game or a season? Articles Boxes (Box…

A: In statistics whatever the calculation the basic need is data. The collection of data is an…

Q: State at least 5 questions assessing demographic variables and state what kind of descriptive…

A: Demographic variable provide valuable information about the subject in the statistical analysis.

Q: find third quartile   105,108,110,110,112,120,140,150,180

A:

Q: You may need to use the appropriate appendix table to answer this question. The mean cost of…

A: GivenMean(μ)=385standard deviation(σ)=110

Q: Here are the countries of the top 15 men that raced in a marathon. Use the data to complete parts…

A: (a)

Q: An electronics manufacturer test every 300th cell phone to verify that it is functioning properly.…

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

Q: Please help answering this one:

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…