Explain the basic condiditions to apply the z-test?

Q: Which of these two research objectives may be addressed using Chi-Square test of independence?

A: Chi square test of independence is used to determine whether two variables are dependent or not.

Q: reat corona.a doctor treated 10 cases of corona in 2019 find the prob that 1  or more out of the 10…

A: Given: p = 38% = 0.38 n =10 The binomial formula is: The prob that 1  or more out of the 10 were…

Q: What is the Lhopitals rule used for?

A: the Lhopitals rule

Q: How many of these components leach having a failure rate of 0.005 failures per hour) must be placed…

A: Option A is correct answer

Q: A qutz consists of 20 muhple-choce questions, cach with 4 possible answers. For someone who makes…

A: The probability of getting a correct answer = 1/4 = 0.25 n = 20 Mean  =np u = 20 x 0.25 = 5   The…

Q: Calculate a point estimate of the strength valuethat sep arates the weakest 50% of all such…

A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…

Q: What are the restrictions of use for a Chi-Square analisys?

A: The chi-square is very sensitive to sample size. As the sample size increases, absolute differences…

Q: If autocorrelation is established, how might you correct for this violation of OLS assumptions?

A: Linear regression models find several uses in real-life problems. For example, a multi-national…

Q: Consider two perceptrons defined by the threshold expression True or false? Perceptron A is more…

A: Consider the given threshold expression, ω0+ω1x1+ω2x2>0 Here we have given that the perception A…

Q: A physicist claims that the average wind speed in a certain city is 8 miles per hour. A sample of 33…

A: We have given that Population mean (µ) = 8Population Standard deviations (σ) = 0.6Sample size (n) =…

Q: In a company, a hypothesis test is carried out to verify that the weight of the products delivered…

A:

Q: During the pandemic period, it is claimed that the average of transmitting the virus to others in…

A: Given, n1 = 13 x¯1 = 29s1 = 13n2= 17x¯2 = 33s2 = 17α = 0.13     To find, Test the claim that the…

Q: what is the conventional minimum power a study should have? For a study with this minimum power,…

A: Power of the test is defined as the probability of rejecting the null hypothesis, when the…

Q: The Novovox claimed that their manufactured vaccines are 90% effective against the Covid-19 virus.…

A:

Q: change the order of integra tion and hence evalugte

A: The given integral is: ∫04∫28-yx+y dx dy The limit of x changes from x=2 to x=8-y. The limit of y…

Q: Consider a experimant of Picking Three Cards at randomelenstreaiseguence from a standard deck of 52…

A: Note: Hello! Thanks for the question. There is no information about the type of selection (with…

Q: Find the genekat Sotutionsto the differentiat -or Special

A:

Q: What determines whether we use the z-test or the t-test?

A: Z statistic: Z=(X¯-μ)σ/n~N(0,1) with mean=0,variance=1   t statistic t=(X¯-μ)S/n

Q: A neuroscientist hypothesizes that she found the region in the rat brain responsible for the motion…

A: In the given case, it can be assumed that the aim of the study is to test if the Xsurgery rats are…

Q: find the demand of dr/dq=2800-45q2-15q2  when q=6

A:

Q: Write a short note on Tukey’s HSD test.

A: Tukey's HSD test also called as Tukey's honest significance test is basically a statistical test to…

Q: How does qualification of one tail test is done?

A:

Q: Determine the orthonormal set in Pobtained by the Gram-Schmit orthonormalisation process applied to…

A: Given:   un, where un = e1+ e2 + ⋯ + en and  en = 0, … , 0, 1 , 0 , … ; 1 occurs in the nth…

Q: can you  plan a hypothesis test  with these information on the table (T-Test), concerning  Knowledge…

A: The  types of t-tests are as follows: t-test for single mean t-test for difference of means t-test…

Q: Gaydar Exercise 10 in Chapter 1 describes a study thatshowed that heterosexual women, during…

A: The given information is: Population proportion = 0.80 Sample proportion = 0.65

Q: What is formul for Tukey’s HSD Test?

A: The Tukey’s honestly significant test (Tukey’s HSD) is a post hoc test which is used to find out…

Q: The data file includes the text of three books of the Bible (Joshua, Jonah and Philippians) using…

A: Since the question to be answered is not specified, we'll be answering the first question only.…

Q: we can make a causal claim from the results of the chi-square test

A:

Q: esearchers wanted to test the happiness score across 3 time-points   Happiness 1 Happiness 2…

A: Solution: Given information: k= 3 groups  Each group has 4 observation. n1=n2=n3=4n= n1+n2+n3n=…

Q: (13 + 8)–å dt

A: See the details solution below

Q: A neuroscientist hypothesizes that she found the region in the rat brain responsible for the motion…

A: As per guidelines we will solve first question only, please repost other questions for more answers.…

Q: Explain the Extended Least Squares Assumptions?

A:

Q: A sample of 137 burglaries indicated that 58 were not via an open or unlocked door or window. At the…

A: It is given that number of burglaries were not via an open or unlocked door or window (x) is 58 and…

Q: A neuroscientist hypothesizes that she found the region in the rat brain responsible for the motion…

A: Let μ1 and μ2 to be the population mean number of rewards among the surgery group and control group…

Q: Suppose 84% of hypertensives and 23% of normotensives are classified as hypertensive by an automated…

A: Percentage of hypertensive is 84%. Percentage of normotensive classified as hypertensive is 23%.…

Q: explain the differences between 'Pigeonhole principle' and 'Generalized pigeonehole principle'

A:

Q: ystems, what is the probability that at to view page 1 of the standard norm to view page 2 of the…

A: Let a random variable X represent the number of years that the switch survived. X follows an…

Q: A minority of adults would erase all of their personal information online if they could. A software…

A: a. Denote p as the true proportion of the adults, who  would erase all of their personal information…

Q: The phi-coefficient can be used to measure effect size for a Chi-Square for Independence if each of…

A: In the chi-square tests for independence, a sample chi-square can be used to find out the number…

Q: The data file includes the text of three books of the Bible (Joshua, Jonah and Philippians) using…

A: In the given problem, we have to identify those letters whose Confidence intervals do not overlap…

Q: What do all three types of t-test have in common

A: What do all three types of t-test have in common

Q: If a chi-square test of Independence ends in a non-significant result it means that the variables…

A: The hypotheses for the chi-square test of Independence are, Null hypothesis: H0: The two variables…

Q: A researcher selected a sample of 268 former student-athletes from a list of graduates of a large…

A: Population proportion = p₀ = 0.17   Sample size = n =268 Sample proportion = p̂ =  0.14

Q: Compute the co-efficient of skewness from the foliowing figures : 25, 15, 23, 40, 27, 25, 23, 25,…

A: From the provided information, Number of observations (n) = 9