Edith performs a test of the null H0 : μ = 12 against the alternative HA : μ < 12 based on a random sample. She computes the appropriate t-statistic. The p-value corresponding to her t-statistic is 0.023. After that, I construct 95% and 99% confidence intervals for the population mean μ using Edith’s data. Then, which of the following is true?  (a) Both the 95% and 99% CI’s contain 12 (b) The 95% CI contains 12, but the 99% CI does not  (c) The 99% CI contains 12, but the 95% CI does not  (d) Both the 95% and 99% CI’s do not contain 12 (e) Not enough information to answer

Q: [t (47) = -8.21, p = .03] Based on the parenthetical statement given above, what is the sample size…

A: The t-critical value at 47 degrees of freedom is -0.82.

Q: The random and 10% conditions are met. Is the Large Counts condition met?

A: The data is given by   Student Parent  Teacher Total Yes 24 12 6 42 No 21 13 6 40 Total 45…

Q: Find only t∗ for the following cases (Round to 4 decimal places): (a) n = 18 and for 99% confidence…

A: a) n = 18 and for 99% confidence interval. df=n-1=17 α=0.01 t-critical value at df =17 and α=0.01 is…

Q: 6.- The day after Thanksgiving-called Black Friday–is one of the largest shopping days in the United…

A: A confidence interval (CI) is a type of estimate computed from the observed data. It gives a range…

Q: Interpret the following statement regarding the statistical findings of a research study.  “61% (n =…

A: Introduction: The outcome of a study involving low-carbohydrate and low-fat diets is given.

Q: b. Get Most Powerful Test (MPT) at a given significance level a. c. Analyze your MPT's power. [let n…

A:

Q: 4. Find a 95% confidence interval for the difference of two means when you have independent samples,…

A: To test:H0:μ1-μ2=0H1:μ1-μ2&gt;0 or μ1-μ2&lt;0

Q: the claim that there is a correlation (Ha:p7 0). а You have a data set with 5 subjects, in which two…

A: From provided information, hypothesis test is conducted to determine if the bivariate data set.…

Q: A sample of n = 4 scores is selected from a population with an unknown mean. The sample has a mean…

A: This simple confidence interval uses a t statistic and sample mean (M) to generate an interval…

Q: Only about 16% of all people can wiggle their ears. Is this percent lower for millionaires? Of the…

A: Given information- Population proportion, p = 0.16 Sample size, n = 357 Significance level, α = 0.01…

Q: 1. Your friend has just calculated his confidence interval for this correlation question (his…

A: Given that the correlation coefficient the given confidence interval is wrong which is…

Q: Bob selects independent random samples from two populations and obtains the values p1 = 0.700 and p2…

A:

Q: You wish to test the following claim (Ha) at a significance level of a = 0.005. H.:P1 – P2 = 0 Ha:P1…

A: Given: α=0.005p^1=35.3%=0.353n1=626p^2=31.9%=0.319n2=457Thus, p^=n1p^1+n1p^1n1+n2…

Q: Sample Sample size Sample variance 1 N1 = 11 s = 12 %3D 2 n2 = 8 s = 23 i. Find the test statistic F…

A: The provided sample variances are s12=12s_1^2 = 12 and s22=23s_2^2 = 23  and the sample sizes are…

Q: he dietician is working with a random sample of 50 patients who are dieting. He puts them on a…

A: The dietician is working with a random sample of 50 patients who are dieting.

Q: H. Let X1,...,X, be a random sample from some distribution with unknown u. It's known that X, = 100…

A: 39. Given that, ∑i=1nXi=100∑i=1nXi2=1783 n=100 X¯=∑i=1nXin   =100100  =1 s=∑X2-∑x2nn-1…

Q: For each of the following tobs Values, determine the highest level of significance associated with…

A: Answer:i) tabsdt4.00017Decision → Reject Ha for two tailed testhighest level of significance =…

Q: A doctor is concerned that a drug treatment causes people to run a fever.  She recruited n = 50…

A: Given Data: n=50   There is only one sample

Q: A researcher obtained the following for the 95% confidence interval for Pearson's correlation.…

A: Solution-: Solution-: A researcher obtained the following for the 95% confidence interval for…

Q: The test statistic of z=2.98 is obtained when testing the claim that p≠0.551. a. Identify the…

A: Given that test statistics z=2.98,alpha=0.05 The null and alternative hypothesis is

Q: A sports statistician is interested in determining if there is a relationship between the number of…

A: AnswerGiven,[O]           Foot ball      Basket ball       Soccer        Baseball       TotalHome…

Q: Bob selects independent random samples from two populations and obtains the values pi = 0.700 and p2…

A:

Q: Suppose that we would like to test the following hypotheses on the population correlation…

A:

Q: 4. Find a 95% confidence interval for the difference of two means when you have independent samples,…

A: Sample statistics for two independent samples are given below:,  , , , Confidence interval:

Q: The parameters of my population distribution are: µ = 50 and σ = 15. The parameters of my sample…

A: To calculate: Calculate my sample's Z score on the comparison distribution.

Q: The 2006 Statistical Abstract of the United States reports on a survey that asked a national sample…

A: Given that  Sample size (n) = 80000 Suppose  that one-third of all American households own a pet…

Q: Given a result of t (30) = 1.55 for a one-tailed paired samples t-test, What is the sample size?

A: It is given that t(30) =1.55. That is, t(df) = 1.55 Df = 30

Q: You wish to test the following claim (H) at a significance level of a = 0.001. For the context of…

A: Here we have to used A paired t-test  when we are interested in the difference between two variables…

Q: Q 3.14: The engineering and the marketing team are interested in the mean number of requests of…

A: Solution: Here The standard error of the given samples can be calculated by using the formula given…

Q: Peggy constructed the 95 percent confidence interval (4.8,5.2)(4.8,5.2) to estimate the slope of a…

A: If an interval is introduced as an estimate of the unknown parameter, then it is interval…

Q: Two sample T for Men vs Women SE Mean A physical therapist wanted to know whether the mean step…

A: To compare the means of two independent population, two sample t-test is conducted. When the…

Q: ematics exam at JUST university for two classes are as foll =15.4, SD=8) and Class 2: (n=36,…

A: Given Data : For Sample 1 x̄1 = 15.4 σ1 = 8.0 n1 = 32 For Sample 2…

Q: 95 63 70 56 70 40 35 28 d regression equation for this data is ý = 25.870 + 0.291x, where x = price…

A: Since the question has multiple sub parts we will solve the first part only.  Please resend the…

Q: Consider the following sample: 5.2,7.6,3.4,6.5,7.1 which is selected from lr(a, ß). The method of…

A: Given the sample data : 5.2, 7.6, 3.4, 6.5, 7.1 which is selected from Gammaα, β

Q: The parameters of my population distribution are: µ = 20 and σ = 5. The parameters of my sample…

A:

Q: A sample of 2.018 American adults was asked how they viewed China, with 13% of respondents calling…

A: Given sample size(n)=2018p^=0.13+0.09=0.22 (respondents calling unfriendly and an…

Q: A sample of n = 20 scores is transformed in to z-scores. The mean for the 20 z-scores is ____?

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

Q: (40) Suppose n = interval [0.7, 1.3] is 144 and o? = 12. The value of a, corresponding to the…

A:

Q: samples were drawn independently from two normal populations. Sample 1: 11.6, 11.35, 10.1, 10.85,…

A: Sample 1: 11.6, 11.35, 10.1, 10.85, 10.35, 10.6, 11.1 Sample 2: 5.85, 8.85, 9.85, 11.85, 7.85  Test…

Q: You are conducting a significance test of H0: μ = 7.2 against Ha: μ < 7.2. After checking the…

A: The degrees of freedom is, df=n-1=25-1=24 The degrees of freedom is 24. The test statistic is -1.45…