I run a between-subjects experiment with two experimental conditions. My analysis returns a p-value of .020. What are the possible explanations for this result (select all that apply)? O a. The null hypothesis is false b. The research hypothesis is true Oc. I have made a Type 2 (false negative) error Od. I have made a Type 1 (false positive) error

Q: 13.36 (EX) Pregnancy lengths 2/2: What is the probability that the average pregnancy length exceeds…

A: The given mean of the sampling distribution is 266 and standard deviation is 4.

Q: = Let X and Y be independent Bernoulli(1/2) random variables. Let Z : (Y – X)². What is the…

A:

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone…

A: Given Z=-0.81, Z=1.27

Q: A standard deck of cards contains 52 cards. One card is selected from the deck 1) compute the…

A: GivenTotal no.of cards in a deck=52

Q: let 9₁, 92, Yn reprecent the order statistic Prom Fo(x). Where Fo(Y) is the cumulative funcation Yxx…

A: We have a random sample x1, x2,...,xn of size n. Y1, Y2, ...., Yn represents the order statistics of…

Q: Suppose that 71% of the surface of the Earth is covered in water, and a random number generator uses…

A: Givenp=0.71n=6Let "x" be the no.of locations are in…

Q: The probability of flu symptoms for a person not receiving any treatment is 0.024. In a clinical…

A: Given information: The probability of flu symptoms for a person not receiving any treatment is…

Q: Question 15 The retirement ages of a group of 80 people is summarised in the following table.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A student wanted to establish whether physical inactivity increases the likelihood of  students…

A: Solution-: Given data:  120,120,150,140,130,150,160,120, 125,130,142,…

Q: The number of bacterial colonies on a petri dish can has an average of 2.5 per cm2. i. Define the…

A:

Q: You    collected    data    from    84    adults    in    multiple    villages    on    the…

A: Given Sample size, n=84 Mean of the distance travelled in attending primary school, x¯1=11 Standard…

Q: As purchasing agent for the Horner-Williams Company, you have primary responsibility for securing…

A: The hypotheses are given below: Null hypothesis: Alternative hypothesis: The test statistic is…

Q: TV report conducted a survey of 887 people in New York City and found that 38% of the population…

A: given data sample size n = 887sample proportion p^ = 0.3892%confidence interval for p :…

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A: GIVEN DATA μ=100σ=15PROBABILITY THAT A RANDOM SAMPLE OF 100 PEOPLE HAS A MEAN IQ OF MORE THAN 104…

Q: sing Appendix C-1 or Appendix C-2 find the p-value for each test statistic. (Round your answers to 4…

A: Given that  Test statistic  z=1.71 , z= -1.65 ,z= -182

Q: QUESTION 1 Which of the following are true when considering the difference between two means? ☐ A…

A:

Q: Find the p-value using Excel (not Appendix D): (Round your answers to 4 decimal places.) (a)…

A: Given  All p value calculated from Excel

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: GivenThe region left of the line is shaded and is labeled 0.9535

Q: A manager is interested in determining if the population standard deviation has dropped below 130.…

A: Given claim: The population standard deviation has dropped below 130. Null Hypothesis: H0:σ≥130…

Q: 4) Use R to find area under Z curve given the Z value. (a) P(-1.45 1.31)

A: Hi there! Thanks for posting the question. Since there are two different questions with multiple…

Q: ng continuity correction, probability of getting greater than 60 successes. P(x=60) P(x>60)…

A: Continuity correction is useful when a continuous probability distribution like normal distribution…

Q: Imperfect multicollinearity:   1. means that you cannot estimate the effect of at least one of the…

A:

Q: Recorded here are the germination times (in days) for 12 randomly chosen seeds of a new type of…

A: Given data is21,18,13,21,16,21,13,19,16,18,18,15sample size(n)=12confidence level=99%

Q: The local newspaper claims that 15% of the residents of the community play the state lottery. If you…

A:

Q: A jar is filled with 68 different colored marbles, 12 of which are red, 29 of which are blue, and 27…

A: Given information: There is a total of 68 different colored marbles. 12 are red, 29 are blue and 27…

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: .6.1 Experience has shown that the diameter of a machined component is normally distributed, with an…

A: Here, mean is 165, standard deviation is 2 5. Sample is 77. We will use z-standard normal…

Q: 3. Prove the following identities for Binomial Coefficients (by using the factorials) A. (1) = n B.…

A: We know that ,Cr=n!(n-r)!×r!nand r!=r(r-1)(r-2)........×2×1

Q: Walmart has become the largest supermarket in America, and as Walmart grows, its net sales also…

A: Given, Walmart's Net Sales data per quarter from 2015 to 2021 as Year Quarter Net Sales$×108…

Q: The US energy information administration reported that the average price for a gallon of regular…

A:

Q: 3) Suppose in MSU, 12 out of 200 students are covid positive. If 300 students are selected for COVID…

A: 12 out of 200 students are covid positive p(covid positive)=12200=0.06here p=0.06q=1-0.06=0.94 n=300…

Q: Identify whether the variable is continuous or discrete: Occupation.

A: A quantitative variable which can take any value from the real numbers is a continuous variable.…

Q: 9. Let p(x) = ()*, ,X = 1,2,3,..., zero elsewhere, is the PMF of the discrete random variable X.…

A: We have given that

Q: In a recent​ year, an author wrote178checks. Use the Poisson distribution to find the probability​…

A: Given that,  In a recent​ year, an author wrote178checks The average number of checks author wrote…

Q: In the early 2000s, ABC Mining Company implemented new safety guidelines. Prior to these new…

A: A chi - square test is an appropriate test to compare the difference between observed frequency and…

Q: The accompanying data set lists full IQ scores for a random sample of subjects with medium lead…

A: F test are used to understand the variance of two samples are equal or not. It is the type of…

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A: Let us denote the IQ scores as X follows normal distribution mean 100 and standard deviation of 15.…

Q: (a) 9 percent level of significance, two-tailed test. Critical value of z (b) 7 percent level of…

A: It is given that the hypothesis test at different significance levels. Here, need to find out the…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: GIVEN DATA,normal distribution μ=51σ=6.1we have to find out the given probabilities for given data

Q: 1. Indicate how many 4-digit numbers smaller than 6,000 can be formed from the digits 2, 4, 5, 6, 8,…

A: All questions are related to permutations NPr = N!/(N- r)!

Q: In a cumulative polygon (curve), frequencies are plotted against A.) midpoint B.)upper class…

A: Introduction A cumulative frequency (cf) polygon (curve) represents cf distribution of the grouped…

Q: With a = .05, complete step 4 of the hypothesis testing procedure. What decision should the…

A: A test for making a claim about the population means is the  t-test for two means with unknown…

Q: Use the given data values​ (a sample of female arm circumferences in​ centimeters) to identify the…

A: Given data: 39.1, 34.1, 32.4, 43.9, 41.5

Q: f X1,X2,...,Xn constitute a random sample of size n from a geometric population, show that Y = X1 +…

A: Given information: Let x1,x2,....,xn  is a random sample of size n from a geometric distribution.…

Q: 3. The Labour Force Survey of the Philippine Statistics Authority (PSA) reported the country's…

A: Two types of statistics: Descriptive statistics arrange, examine, and display the data in a relevant…

Q: On step 3, why is it that you're substracting 1 from [ P(x=0) + P(x=1) + P(x=2) + ......P(x=9)] ?

A: Let the R.V X denotes the number of computers has virus and it follows the binomial distribution…

Q: Assuming that a 15:3:1 demerit weighting system is used, determine the central line and control…

A:

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A:

Q: Suppose that a random variable X has a continuous uniform distribution  a. Find the distribution of…

A:

Q: Hypothetical data for a two-factor study comparing two levels of type of browsing (Facebook or news…

A: Weak strong Facebook 14 29 8 19 14 29 10 23 19 25 News 13 10 13 14 15 17 11 12…