For the significance test described in #3, a SRS of 250 WCS parents were surveyed and 140 claimed to prefer the new start time. What is the P- value for the test? a 0.0144 0.0289 0.500 O d 0.0743

Q: 32 different video games showing violence were observed. The duration of violence in seconds were…

A: Given, Number of video games(n)= 32 Degree of freedom(df): It represents the number of sample values…

Q: hat is the value of N in a sample with SS = 80 and a variance of 8? a. 4 scores b. 10 scores c. 12…

A: GIVEN DATA  ss  = 80var(x) = 8N = ?

Q: A software company is interested in improving customer satisfaction rate from the 69% currently…

A: Given Hypothesized pop. proportion, p0=0.69Favorable cases,x=146Sample size,n=193Sample…

Q: A cigarette manufacturer claims that his cigarettes have nicotine content that does not exceed 2.0…

A: Introduction :-  Here we want to identify the correct set of hypothesis to test the claim of…

Q: The test statistic of z equals 1.86 is obtained when testing the claim that pnot equals 0.778.…

A: GIVEN DATA  Z = 1.86 claim : p ≠ 0.778 here two tailed test.  we have to find p value.

Q: A researcher wanted to determine whether certain accidents were uniformly distributed over the days…

A: A researcher wanted to determine whether certain accidents were uniformly distributed over the days…

Q: Nineteen different video games showing alcohol use were observed. The duration times of alcohol use…

A: Given data, n=19 what does df denote?

Q: A random sample of n1 = 10 regions in New England gave the following violent crime rates (per…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

Q: Several students were tested for reaction times (in thousandths of a second) using their right and…

A: The data shows the reaction times using their right and left hands.

Q: The table below summarizes the  results of a survey in which randomly selected people were asked how…

A: It is needed to test, whether the feelings on medical marijuana and gender are independent or not.

Q: What is the Z score? X is 24, mean is 9.5137615, and standard dev is .4.2505221

A: Given Information: x = 24,  μ=9.5137615, σ=4.2505221 z-score is a standardized value that specifies…

Q: In a survey by Bea et al., it was found that 218 of 1,062 urban residents had a history of allergic…

A: Formula of test statistic : z = p^1 -p^2p(1-p)1n1-1n2 Where , p^1 and  p^2 are sample proportion. n1…

Q: The mean salary of federal government employees on the General Schedule is $59,593. The average…

A:

Q: QUESTION 22 A cereal company claims that the mean weight of Brand A cereals is less than 16 oz. The…

A: given data, a cereal company claims that the mean weight of brand A cereals is less than 16…

Q: The value obtained for the test statistic, z, in a one-mean z-test is given. Also given is whether…

A:

Q: A random sample of n1 = 10 regions in New England gave the following violent crime rates (per…

A: Step-by-step procedure to find the test statistic using Excel: In Excel sheet, enter x1 in one…

Q: The value obtained for the test statistic, z, in a one-mean ztest is given. Also given is whether…

A:

Q: An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans…

A: p^=xn= 2255= 0.40

Q: A cigarette manufacturer claims that his cigarettes have nicotine content that does not exceed 2.0…

A:

Q: What is the ∑X for this sample

A: A sample of size is denoted by n. mean is nothing but the average of given sample observations. Here…

Q: A sample of n = 8 scores has a mean of M = 12. What is the value of  ∑X

A:

Q: A sample of n = 7 scores has M = 5. All of the scores are doubled. What is the new mean? %3D O M = 5…

A: It is been asked to find the new mean from the given information.

Q: A survey was taken of the heights, in inches, of 20- to 29-year-old males. A simple random sample of…

A: Given info: A survey was taken at the heights in inches of 20-29 year old males. A simple random…

Q: Several students were tested for reaction times (in thousandths of a second) using their right and…

A: The data shows the reaction times of the right and left hands. Right hand Left Hand 131 119…

Q: A researcher measures eye color for a sample of n = 50 people.  Which measure of central tendency…

A:

Q: A gambler complained about the dice. They seemed to be loaded! The dice were taken off the table and…

A: Given: n = 300 Formula Used: Test-statistic χ2 = ∑(O-E)2E Where O = Observed value E = Expected…

Q: If you had a test statistic of z = -3.14 and did a left tail test, what would the p-value be?   A.…

A: Given: Test statistic z= -3.14. Left tailed test.

Q: A software company is interested in improving customer satisfaction rate from the 66% currently…

A: From the provided information, A software company is interested in improving customer satisfaction…

Q: A one-way ANOVA was conducted at ? = 0.05. The study involved three (3) different groups with 12…

A:

Q: According to a recent​ report, 46​% of college student internships are unpaid. A recent survey of 80…

A: Given data is appropriate for testing of hypothesis to test z-test for single proportion. Because it…

Q: Below indicate whether the appropriate test would be an independent t-test, dependent t-test,…

A: Solution: Independent t-test is used when two samples are independent and to test equality of two…

Q: What is the z-score if µ = 122, σ = 52.3, and x = 264.3? -1.74 2.72 -2.72 1.74

A: μ=122σ=52.3x=264.3z=?

Q: You want to compare differences in prior arrests across ethnicity in your study, you measured…

A: Given : Number of prior arrests across ethnic people is White = 0 Black = 1 Hispanic = 2 Other = 3

Q: Children with autism differ significantly from children without autism on tests of varbal ability.…

A: Introduction:Independent samples t-test:When the mean values of two independently distributed…