If the null hypothesis states H0: E(Y) = , explain the difference between a two-sided vs a one-sided alternative hypothesis. Give an real-life example in each test

Q: give the null and alternative hypothesis.

A: Here, Claim : The average selling price of a home in an area is greater than $350,000. Thus, ●Null :…

Q: A local chess club claims that the length of time to play a game has a mean of 43 minutes or more.…

A: INTRODUCTION :  Type I Error: The probability of rejecting a null hypothesis when the null…

Q: Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol…

A: Given statement A researcher claims that 62% of voters favor gun control.   We know that  Null…

Q: If we do not reject the null hypothesis when the alternative hypothesis is true, we have made a…

A: Fill in the required  blank

Q: We are doing an experiment to see if Psych majors do better on a test than Econ majors. The null…

A: The claim is that Psych majors do better on a test than Econ majors.

Q: Donated blood is tested for infectious diseases and other contaminants. Since most donated blood is…

A: Correct answer is (D)

Q: If the null hypothesis is h = h0 (here h denotes the population parameter of interest.) and the…

A: Given If the null hypothesis is h = h0 (here h denotes the population parameter of interest.) and…

Q: A researcher has rejected the null hypothesis when in reality, the null hypothesis is false. What…

A: In hypothesis testing, the type I error occurs when the null hypothesis (Ho) is rejected when it is…

Q: Suppose the results indicate that the null hypothesis should not be rejected; thus, it is possible…

A: GivenHypothesis test was conducted to see if a new HIV vaccination reduces the risk of contracting…

Q: What is our null hypothesis?

A: We are interested in whether the different factors of performance, reliability, and style influence…

Q: if the null hypothesis is not rejected when its false a type II error has been committed. True or…

A: Here we need to determine whether the statement about type 2 error is true or false.

Q: If my test statistic is Z = 2, my alpha is .05 and I am doing a one sided test, what is my decision?…

A: Rejection rule using the critical value: It is given that the level of significance as 0.05. The…

Q: Express the null hypothesis Ho and the alternative hypothesis H1 in symbolic form. Use the correct…

A:

Q: Make one example each for descriptive, comparative and associative hypothesis statements and their…

A: Hypothesis is the process of testing for the population parameter with the help of the sample that…

Q: Part 4 of 5 Determine whether to reject H. the null hypothesis H. (Choose one) Reject Do not reject…

A: Given : sample size, n = 55 sample mean, x̄ = 999.0 population standard…

Q: If we fail to reject the null hypothesis when the null hypothesis is true, we have made a O type B…

A: Solution

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: 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

A:

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: The average American consumes 8.6 liters of alcohol per year. Does the average college student…

A: Null and alternative hypotheses:   The hypothesis which is tentatively fixed up under and tested for…

Q: A commonly cited study says that 49% of students study less than 5 hours per week. A researcher does…

A: In a hypothesis test,Null Hypothesis proposes that there is no statistical signifiance exists, or…

Q: and alternate hypothesis for a two sample t-test using variables: Male and Female, Asthma, number of…

A: A hypothesis is used to test whether to reject or accept null hypothesis.

Q: If the results of the test with the following hypotheses are statistically significant, we have…

A: Hypotheses: h0: u1 = u2                      ha: u1>u2    Given the result is statistically…

Q: If we fail to reject (i.e., "accept") the null hypothesis, does this mean that we have proved it to…

A: The null hypothesis is not rejected but it does not mean that the null hypothesis is true beyond all…

Q: a car maker claims that its new sub-compact car gets better than 49 miles per gallon on the highway.…

A: Given that a car maker claims that its new sub-compact car gets better than 49 miles per gallon on…

Q: Which is the correct null hypothesis based on this statement: People with diabetes have higher…

A: The test is to check whether people with diabetes have higher systolic blood pressure than people…

Q: State the conclusion for this hypothesis test.

A: P-value is given by 0.000 and level of significance is 0.10

Q: Write the null hypotheses. If a = 0.05, should you Reject or Not Reject the null hypothesis. Find…

A: a. The test hypotheses are: Null hypothesis: H0: p1 = p2 Alternative hypothesis: Ha: p1 ≠ p2

Q: Our goal is to see whether the global temperatures have been getting higher. For the following…

A: As per the question Claim:- Global temperature have been getting higher. I

Q: If the P value is greater than the alpha value, then we reject the null hypothesis. T/F

A: According to our policy we can answer only first question, we can answer only first question.

Q: If the hypothesis test results in a p-value of 0.08, would we be able to reject the null hypothesis…

A: Given,p-value =0.08α=0.05

Q: company wants to test if the average amount in the 12oz cans that they produce is less than it…

A: Given: Hypothesized mean μ=12

Q: new blood test is being developed to screen patients for cancer. Positive results are followed up by…

A: A new blood test is being developed to screen patients for cancer. Positive results are followed up…

Q: If the t-computed value is 2.115 and the critical value is 2.423, what will be the decision? a.…

A:

Q: When the null hypothesis is true, the F test statistic is close to                           ["",…

A: H0: Null Hypothesis F test statistic (F)=Variance of Dataset1Variance of Dataset2

Q: Formulate a null and alternative hypothesis with the topic "the water quality of a river"

A: The null hypothesis is a statement which is considered to be true by default. Whereas the…

Q: 2. If the t-computed value is 2.430 and the critical value is 2.011, what will be the decision? A.…

A: We have given that  Test statistic (t) =2.430 , and t critical=2.011   Note - According  to bartleby…

Q: The two approaches for testing hypotheses  are: Select one: a. one-tailed and two-tailed b.…

A: Solution-: We find the two approaches for testing hypotheses=?

Q: A test of the null hypothesis H0:μ =μ0  gives test statistic z= -0.33 what is the P-value if the…

A:

Q: For the given scenario determine the type of error that was made, if any .(hint begin by determining…

A:

Q: A Chi square test has been conducted to assess the relationship between marital status and church…

A: Given that Chi square is 7.45 critical Chi square is 9.488.  What may be concluded? Select the…

Q: A type I error could be committed even if the null hypothesis is false  True  False

A: The type 1 error means that the rejecting the null hypothesis when it is true.

Q: In which situation cointegration test can be performed? Write down its null Also, refer the given…

A: Given, The table of results.           To find, In which situation cointegration test can be…

Q: why are large x2 values sometimes obtained when the null hypothesis true?

A: A large chi-square value indicates that the data does not fit very well, that is, there is no…

Q: A hospital claims that the mean wait time for emergency room patients is more than 38 minutes.…

A:

Q: Suppose an engineering firm is asked to check the safety of a dam. A) What kind of mistake would be…

A: If type 1 errors are commonly referred to as “false positives”, type 2 errors are referred to as…

Q: The null hypothesis is always concluded as true, while the alternative hypothesis is always false…

A: We have given that the statement about to the null hypothesis and the alternative hypothesis.

Q: When a researcher conducts an experiment and fails to find significant results, what should she…

A: According to the provided information, The researcher conducts an experiment and fails to find…

Q: local chess club claims that the length of time to play a game has a mean of 23 minutes or more.…

A: Claim: The length of time to play a game has a mean of 23 minutes or more.