You are conducting a test of homogeneity for the claim that two different populations have the same proportions of the following two characteristics. Here is the sample data. Category A B Population Population #1 #2 34 46 100 15 What is the chi-square test-statistic for this data? x²

Q: The annual salaries of six employees of a company are as follows: $22,000 $35,000 $22,000 $46,000…

A:

Q: Science teacher interviews all of the students who are members of the school science club. This type…

A: Solution-: We want to find the type of sampling for following example Science teacher interviews all…

Q: Last year's mean hourly wage (in dollars) for all hospital clerical workers in a large state was…

A: Given that  Last year's mean hourly wage (in dollars) for all hospital clerical workers in a large…

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: Obtain the sample size needed. The sample size needed is obtained below as follows :

Q: ht bulb manufacturer wants to compare the mean lifetimes of two of its light bulbs, model A and…

A: Given that    Sample sizes n1=11     , n2=13        Sample means X̄1=1323     , X̄2=1366     s1 =95…

Q: Having a brother increases one's monthly earnings by $200." Why is this an example of an…

A: Given: “Having a brother increases one's monthly earnings by $200." this statement gives the…

Q: Nails are sold in a packet of 100. Occasionally a nail is faulty. The number of faulty nails in a…

A: It is interpreted that, each nail has the only options of being "faulty" (i.e., denoted as success)…

Q: One weakness of a systematic sample is that Select one: a. It is difficult to separate the…

A: Systematic Sampling Technique: The systematic sampling technique is a type of random sampling method…

Q: USH Financial is a small bank that is examining its customers' use of its website. The numbers of…

A:

Q: By hand, find the first quartile of the following set of numbers: 21 24 Answer: 25 26 27 28 29 31 32…

A: Arrange the data set in ascending order are.  21,24,25,26,27,28,29,31,32,35 n=10

Q: Engineers must consider the diameters of heads when designing helmets. The company researchers have…

A: Given Population mean μ=7.1, standard deviations σ=1.2

Q: Refer to the data set of body temperatures in degrees Fahrenheit given in the accompanying table and…

A: Given data set is 99.1,99.1,97.8,97.6,97.1,97.1,98.3,98.3,99.3,96.9,98.0,99.5 97.7 ,99.6, 99.1,…

Q: b) Let Z₁ =*#*~N(0,1), and W₁ =~N(0,1), for i=1,2,3,...,10, then: i) State, with parameter(s), the…

A: Given Zi~N(0,1) and Wi~N(0,1)  Result: t~F(a,b) Then  Mean=E(t)=b/(b-2)…

Q: QUESTION 29 A researcher assesses self-esteem among college students at the beginning of the…

A: Given: Sample size n = 6 Formula Used: Pearson's correlation coefficient is r =…

Q: QUESTION 9 An analysis of variance differs from a t test for independent means in that an analysis…

A: We want to tell you which one is the correct choice.

Q: A study done on a marriage counseling course showed that the proportion of couples for which the…

A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…

Q: 1.3. If the coefficient of multiple determination is as follows explain what it measures. 1.4. The…

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

Q: A new assembly-line procedure to increase production has been suggested by Mr. Mump. To test whether…

A:

Q: A light bulb manufacturer advertises that the average life for its light bulbs is 900 hours. a…

A: From the provided information, Sample size (n) = 15 Level of significance (α) = 0.10

Q: Given that the height of college boys is normally distributed with mean 5'-2" and standard deviation…

A:

Q: Given the jointly continuous random variables with the following: Solve for the joint density…

A: As per our guidelines I can solve only first 3 subparts. Post the remaining subparts again and…

Q: Winning the jackpot in a particular lottery requires that you select the correct  five numbers…

A:

Q: The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 320…

A: GivenMean(μ)=320standard deviation(σ)=14

Q: Express the confidence interval 82.6 % < p < 91.4% in the form of p ± E.

A: Given: The confidence interval is 82.6% &lt;p &lt; 91.4% The lower bound is 82.6% and upper bound is…

Q: Suppose that a sequence of mutually independent and identically distributed discrete random…

A: Given X~pois(θ) Mean=E(X)=V(X)=variance=θ   X1, X2, ... Xn be the independent variables.

Q: "Based on their results, a researcher makes the interpretration that variable A is not associated…

A: Given that  The interpretation that the variable A is not associated with variable B to any…

Q: State TWO (2) reasons why you would undertake sampling rather than a census for the proposed study

A: Sampling could be more accurate than census for the proposed study . The reasons for this are as…

Q: a) Let X₁, X2, X3,..., X30 be a random sample of size 30 from a population distributed with the…

A: Given X~exp(1/2)

Q: A lottery ticket has a grand prize of 42.1 million. The probability of winning the grand prize is…

A:

Q: You want to obtain a sample to estimate a population mean.you believe the population standard…

A:

Q: QUESTION 14 "If a study reports a F-statistic of F(2, 12) = 25.67 and the same number of…

A: Given F(2,12)=25.67

Q: question 25 which of the following options is the correct mean square within treatments value for…

A:

Q: Consider a random variable X and the following probability distribution. P(X=12) = 0.0405 P(X = 33)…

A:

Q: Consider the following hypotheses statement for the average cost of a computer part: Ho: 56, Hap>…

A: Given that  x̄ = 58 ,  μ = 56 , ? = 6 , n = 70

Q: QUESTION 24 Calculate the Mean Squared Between treaments value for a repeated measures ANOVA with 10…

A: Given N=10(observations)  K=4(conditions)  SS-Between=879.85  SS-WITHIN =692.11 We have to choose…

Q: What are the conditions that must be satisfied to apply the Poisson probability distribution? An…

A: To satisfy the conditions of Poisson distribution an event should occur any number of times during…

Q: Suppose that a sequence of mutually independent and identically distributed discrete random…

A: Given X~Pois(θ) Mean=variance=θ  X1,X2,..Xn be the independent V(X1+X2+..+Xn)=V(X1)+V(X2)+..+V(Xn)

Q: Determine the cumulative deviations and the backlog for each period.

A: we use excel to solve this problem

Q: A study was done to look at the relationship between number of vacation days employees take each…

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

Q: Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given…

A: Note: As per my policy i can answer only three sub parts . kindly repost the remaining ones. Given…

Q: Appointments

A:

Q: A consignment of 180 articles is classified according to the size of the article as under. Find the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Answer the question D and E Question D- Based on the histogram, how would you describe the epidemic…

A: D. From the histogram, The number of diarrheal cases on 14th Jan is 1. The number of diarrheal cases…

Q: following probability density function: >= { / ² f(x) = e, if 0<x<∞ otherwise Suppose that Y = Σ₁…

A:

Q: If we were interested to test whether an instrument Z is correlated with the error termi regress Z…

A: We know that the instrumented Z is the third variable in a regression analysis (econometrics) which…

Q: 1.82 1.47 2.25 1.92 2.04 1.18 2.69 1.32 1.48 2.43 2.95 1.43 1.39 0.48 2.94 2.94 0.67 1.79 2.18 1.26…

A: The given data is…

Q: Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They…

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

Q: According to a survey, 30% of adult in the Jamaica said that the cell phone is the invention that…

A:

Q: You intend to conduct a goodness-of-fit test for a multinomial distribution with 8 categories. You…

A: given data  no. of categories k = 8 no. of samples n = 87 df for chi square distribution = ?

Q: One variable A. 3 moments, calculation and definition B. Normal distribution density function C.…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…