A car wash is assessing the average wait time for its customers. The median wait time is 4 minutes. Does a customer who waits for 5 minutes represent an abnormal wait time? The customer who waits 5 minutes an abnormal case, because 50% of customers wait more than minutes. represents does not represent

Q: Test if there is a correlation between ice cream consumed and murders at the 5% level.    Ice Cream…

A: Solution: State the hypotheses. Null hypothesis: There is no correlation between ice cream consumed…

Q: Which number best approximates risk associated with tea drinking in men?

A: Tea drinking cancer patients in men = 140Total cancer patients in male = 200Tea drinking other…

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: A computer manufacturer conducted a survey. It showed that a younger customer will not necessarily…

A: As correlation measures the degree of linear relationship between two variables.

Q: Assume that a recent survey suggests that about 79​% of adults have heard of the brand.   n=

A: It is given that a recent survey suggests that about 79​% of adults have heard of the brand.

Q: Robyn Banks is an investor who acquired 100 shares of a company in year one at $10 and 50 shares of…

A: If the observations have unequal weightage then their mean value can be calculated by dividing the…

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 30 40 50 60 70 80 90…

A: We have to interprete given box plots.

Q: A policeman believes that less than 40% of older drivers speed on highways, but a confidential…

A:

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: Researchers examined the influence of a television program on children's aggressiveness. The number…

A: Since we only answer up to 3 sub-parts, I'll answer the 1st 3 sub-parts. Please resubmit the…

Q: What does Common outcomes signify in statistics.

A: In statistics, outcomes are defined as the result of an event. An outcome of an event can be unique…

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

A: Given, n=119, x=31, α=0.05 Then, p^=31119=0.260504

Q: Is 83% a parameter or a statistic?

A: The difference between a statistic and a parameter is that statistics describe a sample, whereas, a…

Q: An executive for a large company is considering a change to health insurance plans offered to the…

A: An executive for a large company is considering a change to health insurance plans offered to the…

Q: Researchers examined the influence of a television program on children's aggressiveness. The number…

A: (since it is nit mention which question so as per our protocol we shall answer only the first three…

Q: How will you know by using the mean and median to determine if a distribution is normally…

A:

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: (3) Determine whether the normal approximation can be used with the given distribution or not?…

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: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

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: True or False The PEW Researcher center based on a sample of 10,000 recent college graduates says…

A: We need to find whether the given statements are true.

Q: Is 64.3% a statistic or a parameter? Justify your answer.

A: The objective of the question is to determine whether 64.3% is a statistic or a parameter.

Q: Use the following information to answer the question. Many couples believe that it is getting too…

A: The confidence interval provided ($22,296 to $24,152) for the mean cost of weddings in the U.S. is…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.