Cigarette use   Alcohol use Yes No Total Yes 1449(1280.18) 500 (668.8) 1949 No 46(214.82) 281 (112.20) 327 Total 1495 781 2276   Test whether cigarette use and alcohol use are statistically independent using the chi-squared test. State the null and alternative hypotheses, calculate the test statistic using table, state the df in the table, and state your conclusions.   H0: Ha: X2 =   df = If the P-value is less than 0.001 and α = 0.05, is there evidence of an association between alcohol use and cigarette use?

Q: We would like to test the following hypotheses p=0.05 HAP<0.05 The sample size is 150 and the sample…

A: Solution: Given information: n= 150 Sample size p^=0.08 Sample proportion

Q: Use technology to help you test the claim about the population mean, p, at the given level of…

A: The given values are μ&gt;1300,σ=202.14,x¯=1316.85,n=275.

Q: The mean voltage and standard deviation of 8 batteries from each manufacturer were measured. The…

A: From the provided information,

Q: Consider the output on a chi-square test listed below. How would you explain the results to someone…

A: Note: As it is required to explain the results using the the output on the chi-square test, we have…

Q: Test the claim about the population mean u at the level of significance a. Assume the population is…

A: Denote μ as the population mean.

Q: After 3 days 1341 1316 1352 1355 1327 After 6 days 1376 1373 1366 1384 1358 Can you conclude that…

A: Two dependent random samples are selected from a population and it is assumed that both populations…

Q: Suppose we wish to test whether the mean amount of lead in drinking water in UAE is less than 15…

A: Claim : The mean amount of lead in drinking water in UAE is less than 15 mcg/L.

Q: Use technology to help you test the claim about the population mean, µ, at the given level of…

A: The given values are μ=1200,σ=207.88,x¯=1227.81,n=275.

Q: H0:p=0.5H0:p=0.5 H1:p<0.5H1:p<0.5 Your sample consists of 83 subjects, with 43 successes. Calculate…

A:

Q: (a) Compute a 95% confidence interval for 4 - H2. (Use 2 decimal places.) -10.04 -10.279 x lower…

A: For years 1948 to 1952, sample size n1 = 8820, sample mean = 62.2 and population SD = 9.47 For years…

Q: Find the F-test value given the ANOVA summary table below. Only the final answer should be…

A: The between degrees of freedom is dfBetween = 6 and the total degrees of freedom is dfTotal = 25.

Q: What is the correct way to write the conclusion in APA format for a one tailed greater than…

A: We have given that one-tailed greater than One-Sample T-Test for mean.

Q: denty the na and atemative tyootheses for tis test versus H (Type gers or deimals. Do not Found Find…

A:

Q: When we sample from an infinite population, what happens to the standard error of the mean if the…

A: Note: Hey, since multiple questions are posted, we will answer first question for you. If you want…

Q: Use technology and a t-test to test the claim about the population mean u at the given level of…

A: As the population standard deviation is not known, we will use t distribution. The null and…

Q: A data set includes data from 400 random tornadoes. The display from technology available below…

A: We have to find p value..

Q: A random sample of ZU students has been selected and the time spent on moderate physical activities…

A: The hypotheses test will contain two hypotheses: null hypothesis and alternate hypothesis. The null…

Q: Amount of reading Above average Average Below average Total Glasses? Yes No 47 26 48 31 126 78 70…

A: The total number of observations is .The observed frequency is shown below:GlassesAmount of…

Q: A survey in Newsweek in 1999 asked 747 randomly selected women "how satisfied are you with your…

A: It is given that the chi-square test statistic is 14.278.

Q: ypothesis Testing with the p-value Method A high school principal claims that the average senior…

A: From the provided information, Sample size (n) = 32 Level of significance (α) = 0.01

Q: Choose the correct answer

A: Given, The daily salaries (in dollars) of the random salaries of the eight school districts.…

Q: construct a 95% confidence interval for the mean number of years of secondary education for employed…

A:

Q: A study was conducted of people who had bicycle crashes and whether or not they suffered facial…

A: The data shows the people who had bicycle crashes and whether or not they suffered facial injuries.

Q: The test is done with a 95% confidence level. Find the test statistic, and p-value. (Round your test…

A: The test statistic and the p-value can be obtained from the given output.

Q: The one-sample t‑statistic for a test of H0:μ=42 versus H1:μ<42 based on n=15 observations has the…

A: We have given a one-sample t-test with the hypothesis for the test:Test statistic: Sample size:

Q: The test statistic for a One-Sample T-Test for Mean is?

A: It is given that the We have a problem with the Mean of one sample.  It is obvious that for one…

Q: can u help me find the p value on the ti84 cal

A: Sample size, n=798 No. of them dropped or dismissed, x=519 α=0.01

Q: Age  Incident CVD No CVD Total &lt; 50 45 555 600 50+ 61 339 400 Total 106 894 1000 Is age…

A: Given data table in the this question is,Age Incident CVDNo CVDTotal&lt;…

Q: In a Gallup poll of 1003 randomly selected subjects, 370 said they have a gun in their home. The…

A: Given claim that 40% of homes have guns in them. Null Hypothesis: H0:p=0.40 Alternative Hypothesis:…

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

A: Given information Claim: Most Adults would erase all of their personal information n = 553 60% would…

Q: Salaries of Government Employees The mean salary of federal government employees on the General…

A: GivenMean(x)=58920standard deviation(σ)=1500sample size(n)=39significance level(α)=0.05

Q: In a two-sided hypothesis test comparing the proportion of young adults wito have a tablet compared…

A: we have given that  two sided hypothesis test. and the standized statistic (z) =1.85

Q: The table below summarizes results for randomly selected drivers stopped by police in a recent year.…

A: Introduction: It is of interest to test whether being stopped is independent of the race of a…

Q: Describe about the HYPOTHESIS TEST SUMMARY: z TEST FOR A POPULATION MEAN with example.

A: Z-test: It is used to determine whether the two population means are different or not when sample…

Q: Nero Hatch Company sells matchboxes that are supposed to have an average sample of 90 matchboxes…

A: Determine the type of testing used in the problem.   The type of testing used in the problem is…

Q: A data set includes data from student evaluations of courses. The summary statistics are n= 89,…

A: Given : mean = X = 3.65 standard deviation = S= 0.62 sample size = n = 89 Level of significance =…

Q: 1. Identify the tail of the test. [ Select ] 2. Find the P-value. [Select] 3. Will the null…

A: we test by using  anova  one way    define        H0 :  there is no significance difference…

Q: Suppose the mean income of firms in the industry for a year is $25 million with a standard deviation…

A:

Q: Hypothesis Testing Using a P-Value  identify the claim and state Ho and Ha. find the standardized…

A: For this study, we should use Z-test.This is because the population standard deviation is known.…

Q: The null hypothesis: H, :0 The alternative hypothesis: H :0 The type of test statistic: |(Choose…

A: Given n1=13n2=14x¯1=178x¯2=172s1=5s2=8α=0.05

Q: For a one proportion z-test a z-score of 1.27 was calculated. Use the z-chart to determine the…

A: The p-value is, p-value =p(Z&gt;1.27)              =1-p(Z&lt;1.27)              =1-0.8980…

Q: t the 1980s, it was generally believed that congenital abnormalities affected about 7% of a large…

A: given data, p=0.07claim:p&gt;0.07x=34n=426p^=xn=34426=0.0798

Q: How to find: T statistic to= P Value Null hypothesis rejected? is p value less than a 0.05 level of…

A: The data shows the number of credit cards per participant of 60 individuals who have credit cards…

Q: Test the hypothesis that the average weight of the sacks of a powdered raw material is 50 kg if the…

A: Given data is 50.2,49.3,50.1,49.24,49.37,50.24,49.09,50.35,49.08,49.72,50.21,49.67α=0.05claim isthat…

Q: State wheter the standardized test statistic t indicates that you should reject the null hypothesis.…

A: *If calculated T&gt; critical value  Then we reject the null hypothesis. * If calculated T&lt;…

Q: Use technology to help you test the claim about the population mean, µ, at the given level of…

A:

Q: Use technology to help you test the claim about the population mean, u, at the giveh level 8l…

A: Given,sample size(n)=300sample mean(x¯)=1295.06Standard deviation(σ)=208.23claim: μ&gt;1270α=0.05