You conduct a one-way ANOVA with 12 groups (or populations). At 0.05 significance level, you find at least one population (or group) mean is different (or statistically significant). Next,you are interested in finding which population (or group) means are different.   how many multiple two sample t tests could be conducted for this problem?  (Provide a whole number)     what is the adjusted significance level for those multiple two sample t test?  (Provide a value between 0 and 1 rounded to 3 decimal places)

Q: Find the value of the test statistic. W = Find the p-value. (Round your answ p-value %3D What is…

A: We are required to first state the null hypothesis and then test the hypothesis using the samples…

Q: Problem C In the cancer institute of Philippine General Hospital, there were 529 patients who…

A: Here two samples are given and two favourable cases also. We will use two proportion z-test. At 5%…

Q: 5. Researchers investigating whether number of people sleeping in a room affects the number of hours…

A: Given that  Fcal=0.3246 df1=3 , df2=20 Alpha=5%=0.05 ,

Q: 5) An educational researcher is investigating whether there is a significant difference in the test…

A: Method A Method B85889085888992878790

Q: You are conducting a study to see if the probability of a true negative on a test for a certain…

A: Given: n= 295 ,x= 20 p= 0.12 ,significance level(∝)= 0.1 p̂= 20 / 295 =0.0677966102

Q: What is NOT a factor that influences researcher degrees of freedom?   A. Deciding how large the…

A: Sol:- Answer :- D. Using convenience sampling from the population

Q: Do a hypothesis for the following, make sure to include and label all five steps:       Test the…

A: The null hypothesis is,

Q: A chain of party supply stores reports that, on average, its stores sell 385 party balloons per…

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Q: A high school principal wanted to know if there was a difference in absences for 9th grade, 10th…

A: 9th grade 10th grade 11th grade 12th grade   6 10 17 15   9 12 8 16   6 11 11 12   7 11 14…

Q: For the Question: Is a breath sample inferior for cancer identification compared to a stool sample?…

A: Test: we want to tell you it is left, right or two tailed

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A:

Q: Two types of single-sample tests: How are single-sample z tests and t tests similar in terms of data…

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Q: It was hypothesized that there will be a difference in the average test score in Chemistry class…

A: The number of groups is 2.

Q: You conduct a one-way ANOVA with 7 groups (or populations). At 0.01 significance level, you find at…

A: Given:

Q: Which of the following increases the power of a significance test? I. Increase a II. Decrease the…

A: Hypothesis test is used for drawing conclusions about a population parameter using the sample data.

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A: If calculated chi-square< critical value of chi-square then we fail to reject null hypothesis and…

Q: The IQ scores for a random sample of subjects with medium lead levels in their blood and another…

A: Given the data as Medium Lead Level High Lead Level 66 91 98 61 64 88 87 73 63 76 84…

Q: What statistical tool should be used in the problem?  Anna wanted to build his own coffee shop and…

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Q: Which of the following statistical test is not used for testing significant difference?  A. One-way…

A: Given information: Different tests are given.   Find: Which test is not used for testing significant…

Q: If a P-value is .043, what does that mean in terms of the value obtained for the test statistic?

A: p-value is the probability of obtaining more extreme results under  null hypothesis, by more extreme…

Q: Use the following to answer questions 2-12.   A high school principal wanted to know if there was…

A: The data shows the absences among the four grades.

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A:

Q: Number of Cigarettes Smok 1-14 15-34

A: #   wear seat belts  dont wear seat belts total 0 188 160 348 1-14 27 23 50 15-34 41 34 75…

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A: Explanation: The investigator is specifically interested to test whether the mean weight of babies…

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A:

Q: association between marital status (married, divorced, separated) and BMI (quantitative). Which of…

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Q: Consider a completely randomized design with four treatments A, B, C, and D, and an unbalanced…

A: In the given situation, There are 4 groups. Total number of observations is, n=9+12+7+6=34 Let…

Q: do online students perform differently than students in a traditional classroom? Las semester there…

A: From the provided information, The claim is that there is a difference in the average exam scores…

Q: What would be the effect of changing the value of SS2 to 200 if an ANOVA were used for the following…

A: Given data M1=12,M2=18,SS1=50,SS2=100.

Q: i'm confused with this question on my homework. any help would be greatly appreciated.

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Q: Forty-minute workouts of one of the following activities three days a week will lead to a loss of…

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A: k = 3 goups or treatment

Q: The following is sample information. Test the hypothesis that the treatments means are equal. Use…

A: The null and alternative hypothesis is as follows: Null hypothesis: H0:µ1 = µ2 = µ3 Alternative…

Q: Listed below are ages of actresses and actors at the time that they won an award for the categories…

A: Given : The age of actresses and actors at the time that they won an award for the categories of…

Q: The IQ scores for a random sample of subjects with medium lead levels in their blood and another…

A: We have to determine null and alternative hypothesis denoted by H0 and H1.

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Q: Q18. Why do we conduct post hoc analysis in ANOVA? a. To make a comparison on individual adjusted…

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Q: You are applying for a job at two companies. Company A offers starting salaries with p = $33,000 and…

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Q: For a two-way ANOVA, suppose that Factor A has four levels and Factor B has three levels, and that…

A:

Q: To decide between using an independent-samples t test and a one-way ANOVA, which question should the…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.