Please describe at least 2(two) examples of research questions where you may use Chi-square. Do not forget to write Null and alternative hypothesis.

Q: In a Chi-square analysis, what condition causes one to reject (fail to accept) the null hypothesis?

A: Causes to reject Null hypothesis in Chi-square

Q: Is it one tailed, or two tailed? I thought two because the hypothesis is non-directional

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Q: hi! I need answers on 1 to 3. Specially to number 2, which I am confused what althernative and null…

A: Parametric test are used when the sample follows normal distribution with hypothesis statements.…

Q: The USDA limit for salmonella contamination for chicken is 20%. A meat inspector reports that the…

A: From the given information, Consider p be the proportion for salmonella contamination for chicken. p…

Q: Explain "null hypothesis"? its properties?

A: Null hypothesis: The null hypothesis is a statement about a population parameter, such as the…

Q: I wanted to know what is the null and alternate hypothesis for my first subsection. I know that we…

A:

Q: State the null and alternative hypotheses for each conjecture and describe the Type 1 and Type II…

A: State the null and alternative hypotheses for each conjecture and describe the Type 1 and Type II…

Q: It is important to consider the possibility of a type II error when a nonparametric test fails to…

A: In hypothesis testing the Type II error is said to be committed when false null hypothesis H0 is…

Q: Make 1 real-life problem with a solution in any of the following topics; 1. Preforming hypothesis…

A: A one-sample mean test compared the mean of the sample with a hypothesized population mean value and…

Q: The Chi-square test statistic is = 18.75. What would I compare that to if I wanted to use that test…

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Q: D. Hypothesis Testing

A: Let's understand all the 4 terms given here: 1. Problem Solving:  It is simply the process of…

Q: It is important to consider the possibility of a type II error when a nonparametric test fails to…

A: Answer: TRUE

Q: What is the alternative hypothesis in this problem? Please state in words

A: Let Almond oil denoted by X  Standard denoted by Y  X=26,33,24,21,19,26,15,13,12,22,13,18,18,32,30…

Q: The null hypothesis refers to any hypothesis we wish to test and lis denoted by HO.

A: Given the null hypothesis refers to any hypothesis we wish to test and is denoted by H0. We need to…

Q: If p-value is very large like 0.9, what can we do about a null hypothesis? If p-value is very small…

A: In statistics, any hypothesis testing is carried out by fixing null and alternative hypotheses. Then…

Q: The mean monthly gasoline bill for one household last year was $110. However a realtor suspects an…

A: The mean monthly gasoline bill for one household last year was $110. It is suspected that there an…

Q: Part 1.1. A statistical test measures the experimental strength of evidence against the ____…

A: The null hypothesis is a statement that the value of the population parameter is equal to some…

Q: The average annual household income is not less than 90,000 php. A Null Hypothesis (H,) B…

A: Given that  Population mean μ =90000

Q: I need help solving this question, I am unsure how to compute a hypothesis test

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Q: A manufacturer claims that the batteries for a laptop can last up to 6 hours from full charge. State…

A: A manufacturer claims that the batteries for a laptop can last up to 6 hours from full charge.

Q: Make 1 real-life problem with a solution in any of the following topics; 2. Preforming hypothesis…

A: A paired t test is used when the study is interested in difference between two variables with…

Q: State the null and alternative hypotheses for each conjecture and describe the Type 1 and Type II…

A: let μ be the average weight loss for a sample of people null hypothesisH0:μ=8.2 Alternative…

Q: Please describe an example from a professional experience where you could apply a hypothesis test,…

A: Suppose I am working in R&D Department of a pharmaceutical company. We have developed a new drug…

Q: Think of an application where you can use hypothesis testing to test a premise. Use .05 for your…

A: From the above question,Considering the following data for checking difference of mean are whether…

Q: Help find the test statistic, p-value, if we reject the null, and if there is suffienent evidence.…

A:

Q: Provide a verbal description for the null and alternative hypothesis test to determine if we might…

A: Null hypothesis: It is an expression about the population parameter is true or not. It is denoted…

Q: An example of a hypothesis that is not refutable. Why is it not refutable?

A: Refutable hypothesis is the one which proves the statement to be false or erroneous. Thus, not…

Q: A well known Maine canoe company claims to be favored by over 60% of white water canoeists. A…

A: The null and the alternative hypotheses are, H0: Maine canoe company is favored by less than or…

Q: State your i) null hypothesis, ii) calculated chi-square value, iii) degrees of freedom and iv)…

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Q: Cite five (5) research questions used in real life and formulate your null and alternative…

A: From the given information we find the solution.

Q: If my null hypothesis is 'Dutch people do not differ from English people in height', what is my…

A: We have to find alternative hypothesis..

Q: What are your suggestions on performing a qui-square test? when you have to perform a qui-square…

A: Theory of chi-square test

Q: Can you explain the hypothesis?

A: Concept:Null hypothesis is the hypothesis of no difference. Alternative hypothesis is the claim

Q: In order for an airline to cancel a flight, there needs to be over 6 inches of snow on the ground.…

A: We want to check that :   H0: there is over  6.0000 inches of snow on the ground vsH1: H0 not true

Q: If null hypothesis really is false because of large effect. Explain about the statement.

A: The statement is " if the null hypothesis is really false because of large effect". The statement…

Q: State 2 limitations of the chi-square test, ?

A: Limitations 1: chi-square test tells the absence or presence of an association between the events…

Q: Explain briefly when to use the Z-test, t-test and F-test in the hypotheses testing.

A: Solution: -  1) Z-test: - Following conditions are met before apply the Z-test : 1) The samples must…

Q: Kruskal Wallis is always a negative skewed test.

A: False. It is a positive skewed test.

Q: Step 3 of 4: Determine the decision rule for rejecting the null hypothesis Ho. Round the numerical…

A: The degrees of freedom is, df=n1+n2-2=60+68-2=126 The degrees of freedom is 126. The level of…

Q: If my null hypothesis is 'Dutch people do not differ from English people in height", what is my…

A:

Q: In order for an airline to cancel a flight, there needs to be over 6 inches of snow on the ground.…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether the…

Q: The null hypothesis for this test is:

A: Here, the researcher wants to determine whether or not effects that elevate cholesterol affect males…

Q: whether or not to reject the hypothesis.

A: Given information: The output for one sample proportion test is given.

Q: The null and alternative hypotheses are given. Determine whether the hypothesis test is​…

A: Hypothesis Testing: The statistical hypothesis is a statement made by the researcher based on the…

Q: When a result is not extreme enough to reject the null hypothesis, explain why it is wrong to…

A: The type II error occurs when the false null hypothesis is not rejected.

Q: What do you do with the Null Hypothesis, using the Chi-Square Goodness of Fit Test, if Chi-Square…

A: Given information- We have given test-statisticsχ02=39And critical value is-χcritical2=25 We have to…

Q: A formal hypothesis test is to be conducted using the claim that the mean height of students is…

A:

Q: please show all steps USING EXCEL ONLY FORMULAS a) Identify the null and alternative hypotheses for…

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Q: If you are not able to prove the alternative hypothesis, this means the null hypothesis is correct.…

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.