Every year my place of work has a huge holiday party. Every year there is a survey sent out to see how many people want to attend the party so that there is a big enough venue booked. I wanted to know if the number of people wanting to attend the annual holiday party changed this year because of COVID. In 2019, of the 406 people surveyed, 310 said that they wanted to attend. In 2020, of the 406 people surveyed, 156 said that they wanted to attend. Conduct a test at the a=0.05 level of significance.

Q: Professor Gill has taught General Psychology for many years. During the semester, she gives three…

A: Generating the summary statistics: Using excel, We get the output: Substituting the mean and…

Q: Assuming the requirements are met for the penny study, what is the margin of error for a 95%…

A: given data  n1 = 116    x1 = 80p^1 = x1n1 = 80116 = 0.6897 n2 = 137    x2 = 91 p^2 = x2n2 = 91137 =…

Q: A university math department offers courses in College Algebra, Finite Mathematics, and Applied…

A:

Q: A teacher was listening to some of her students talk about how many SnapChats they send during the…

A: Here, the conduct a study to see if the number of Snap Chats a student sends per day affects how…

Q: A teacher was listening to some of her students talk about how many SnapChats they send during the…

A: By experimental design, we mean how participants are assigned to the different groups or different…

Q: Suppose we want to throw a coin 10 times, predict how many times an image will appear and how many…

A: when flipping a coin one time, there is 50 percent probability of getting image and 50 percent…

Q: based on 18000 interactions how much would get food now earn from social media interactions only if…

A: Given, A chart showing results from a recent survey with the  Get food Now customers. The first…

Q: Several years ago, many scientists got together to explore the effect that newly released, violent…

A: Introduction: In Statistics, an experiment is a study method in which, the researchers allocate the…

Q: Ted Williams played for the Boston Red Sox from 1939-1960.  Many people credit him with being the…

A: We have to find a regression equation of Z on X excluding the data for the war years.

Q: If each order had an average value of 50, how many total interaction (across all type) would get…

A: Given" Average = 50 pounds

Q: A researcher wishes to know if golf scores own clubs are lower with the new clubs. Eight golfers…

A: Own New d   77 72 5   80 81 -1   69 68 1   73 73 0   73 75 -2   72 70 2   75 73 2…

Q: In a computer installation, 60% of programs are written in C++ and 40% in Java. 60% of the programs…

A: It is given that, in a computer installation, 60% of programs are written in C++ and 40% in Java.

Q: Loras Tyrell was curious to see if his students actually saved money by purchasing books from…

A: From the given output : Population Mean,μ = 12.75 Population Standard Deviation,σ =…

Q: Please answer the question in the photo. Thank you!

A: First we state the hypothesis for testing the interaction. H0: The travelling time and types of…

Q: Professor Gill has taught General Psychology for many years. During the semester, she gives three…

A: (A) The 90% CI for slope can be constructed using the formula:

Q: population

A: Hypothesis is a statement made about a population in general

Q: Dr. Lonsbary is a cognitive psychologist who is curious about how mood affects memory. She recruited…

A: External validity: In psychological research, the term "external validity" is determined as the…

Q: The employee's mistake would have the following effect: The median would stay the sameincrease…

A:

Q: There is a factory that makes widgets in different colors. The production time for each color is…

A: Given: Here are the given story's summary, The factory in question makes widgets in two colors -…

Q: A die is rolled four times consecutively. Find the number of possible outcomes if the order of the…

A:

Q: A report indicated that two-thirds of all patients on a given day had a CBC. How many out of every…

A: Solution: We are given:A report indicated that two-thirds of all patients on a given day had a CBC.

Q: Javier volunteers in community events each month. He does not do more than five events in a month.…

A:

Q: When the students were asked to come up with a topic for their assignment, “Amount of Time Spent by…

A: The data shows the time they spent playing online games daily.

Q: A survey found that 58% of American adults said they use the Internet. If 20 American adults are…

A: Answer - A survey found that 58%   i.e P = 0.58               n= 20,    x = 12

Q: A certain school has 3 desktop computers for every 4 laptop computers, and it has 70 computers…

A: Given : A certain school has 3 desktop computers for every 4 laptop computers and it has a total…

Q: In a certain year, Babe Ruth from the New York Yankees had 18 hits in April, 33 in May, 38 in June,…

A: This is a problem related to statistic , so I used the average formula of baseball to calculate the…

Q: There are 22 women and 6 men. If a bar graph were drawn to represent this data, and the length of…

A:

Q: but the average speed that people go is 59 mph with a SD of 4 mph. A speed monitor records the…

A: Given that  Mean = M = 59 , Standard deviation = SD = 4

Q: One of the basketball coaches at Cypress College wanted to see if Cypress College's Strength &…

A: The given data is about the weights that a player can bench press before and after the strength and…

Q: Please answer the following and show how to solve using the graphing calculator. Thank you

A: To solve this problem using a graphing calculator (such as the TI-84 Plus), follow these steps:Step…

Q: At the entrance to one of the residence halls on campus, the residents can choose to enter one of…

A: The null hypothesis is a simple statement about the value of the population parameter which is…

Q: A campus researcher wanted to investigate the factors that affect visitor travel time in a complex,…

A: In this case, there are 2 factors. c= 2 and every factor has 3 subjects. So r= 3 Degrees of freedom…

Q: Professor Gill has taught General Psychology for many years. During the semester, she gives three…

A: A regression equation is used to relate the response variable with one or more explanatory variable.…

Q: Professor Gill has taught General Psychology for many years. During the semester, she gives three…

A: a) For the data given in the question we have to calculate the mean, standard deviation and…

Q: teacher was listening to some of her students talk about how many SnapChats they send during the…

A:

Q: COVID-19 (novel corona virus) took the world by surprise in late 2019. By early 2020, nearly all…

A:

Q: 15 wheelchair users were randomly assigned to three groups with 5 in each group. These participants…

A: 15 wheelchair users were randomly assigned to three groups with 5 in each group. These participants…

Q: Assuming the requirements are met for the penny study, what is the upper bound for a 90% confidence…

A: given data  n1 =116     x1 =80p^1 = x1n1 = 80116 =0.6897 n2 = 137   x2 = 91 p^2 = x2n2 = 91137 =…

Q: In a survey of 91 ​people, 25 reported that they read the Star newspaper and 34 reported that they…

A: the problem is base on inclusion and exclusion principal of sets let n(A) denote the numbers of…

Q: Assuming the requirements are met for the penny study, which of the following explanations describes…

A: given data :116 women surveyed, 80 said that they were in favor of retaining the penny as a form of…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.