Activity 2: C. Identify the type of error if there is any committed in each of the following situations. 1. A true null hypothesis is accepted. 2. A fallse null hypothesis is accepted. A true null hypothesis is rejected. A false null hypothesis is rejected. 3. 4.
Q: A Type 2 mistake arises in hypothesis testing when a. When the alternative hypothesis is true, the…
A: Solution A type 2 error is occurd when null hypothesis is not rejected when it is not true.
Q: ule clalm about the population mean p at the given level of significance a using the given sample…
A: Correct option: Option C
Q: Q3.1 Probability of Type 1 For a particular type of hypothesis test with a sample size of 120,…
A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: Which of the following statements is most appropriate for describing the Null Hypothesis? a The…
A: The null hypothesis is a simple statement about the value of the population parameter which is…
Q: 12. Which of the following is an appropriate null hypothesis in fitting the data? OA. The number of…
A: Hypothesis testing
Q: A used car dealer says that the mean price of a three-year-old sports utility vehicle is $21,000.…
A: Given, sample mean =21743 Sample S.D =1922 Population mean=$21000
Q: 36. A Type I error is committed if we make: a correct decision when the null hypothesis is false. a…
A: Statistics. Type I error
Q: a. Choose the appropriate null hypothesis for this test. O Ho: The individual has been caught…
A: The observed frequency is given and the IRS currently uses Benford's Law to detect fraudulent tax…
Q: A college professor states that this year's entering students appear to be smarter than entering…
A: We have given that this year's entering students appear to be smarter than entering students from…
Q: I. TRUE or FALSE. Write TRUE if the statement is unconditionally TRUE. Otherwise, write FALSE. 1.…
A: We have given that, The non-rejection of the null hypothesis means that the null is true? We have…
Q: We are comparing two samples during a hypothesis test. Sample A has a z-test statistic of 1.58 and…
A: Given Information: Sample A has a z-test statistic =1.58 Sample B has a z- test statistic =-0.34
Q: Researchers in biology collected a sample of bees. They want to test if the average size of bees is…
A: It is given that the A researcher collects a sample of bees in order to test if the average size of…
Q: Researcher A uses a sample of n = 100 for their hypothesis test while Researcher B uses a sample of…
A: Standard error is the error due to random sampling. Population is the set of all objects of…
Q: The eror of rejecting a true null hypothesis is Select one: O a. a Type Il error O b.is the same as…
A:
Q: 3.4 What have you decided to do with the null hypothesis? How did you make this decision? 3.5…
A: The null and alternative hypothesis is, Level of significance, α=0.05 The critical region is,…
Q: A. Deciding the alternative hypothesis is true when it is false B. Deciding the null hypothesis is…
A: We have in hypothesis there are two types of errors which are type-1 and type-2 error Type-1 error:…
Q: hypothesis. Which of the following could possibly be their conclusion?
A: To identify the correct option from the above.
Q: 13. Which of the following is an accurate definition of a Type II error? a. Rejecting a true null…
A: We will tell you which one is the correct choice.
Q: True or False. Write True of the statement is correct and False if it is not. 1. Hypothesis testing…
A: 1) True In hypothesis testing, we use the sample data to verify the claims about population…
Q: A type I error O A. arises when the false null hypothesis is not rejected. O B. is the rejection of…
A: We have to find the cause of occurring of type 1 error which occurs during the hypothesis testing…
Q: With respect to hypotheses, all of the following statements are true, except: 1. A hypothesis is a…
A: Hypothesis is a statement that suggests a relationship between variables or predicts an outcome. In…
Q: hypothesis. Which of the following is true? a. You have for sure made a Type I error. b. You have…
A: The Type I error is known as the probability of rejecting the null hypothesis when it is true. It is…
Q: Which of the following would be an appropriate null hypothesis? Select one: a. All of these. b. The…
A: It is given that the statement about to the null hypothesis. Here, need to find out the correct…
Q: True or False. Write True of the statement is correct and False if it is not. 1. Hypothesis testing…
A: 7) False The alternative hypothesis denotes the presence of significant difference/relationship or…
Q: Suppose you have a hypothesis test which never rejects the null hypothesis, no matter the value of…
A:
Q: Which of the following is an example of a Type 1 error? Rejecting a false null hypothesis.…
A: In statistical hypothesis testing, a type I error is the rejection of a true null hypothesis (also…
Q: On Monday, Philip rejected a null hypothesis that was true. On Tuesday, he retained a true null…
A: Type 1 error may be defined as the reject null hypothesis when null hypothesis is true.
Q: Big fish: A sample of 150 flounder of a certain species have sample mean weight 23.5 grams.…
A: The random variable weight follows normal distribution. We have to write the null and alternative…
Q: f our null hypothesis is H0: ? = 40, what are the three possible alternative hypotheses?
A: From the provided information, The null hypothesis is as follow: H0: µ = 40
Q: Suppose that we fail to reject a null hypothesis at the 0.01 level of significance. Then for which…
A: Ans - Suppose that we fail to reject a null hypothesis at the 0.01 level of significance.…
Q: Identify if its TYPE 1 or TYPE II if there is any committed in each of the following situations. 1.…
A:
Q: A. State the null hypothesis (H,) and the alternative hypothesis (Ha) for each of the following. 4.…
A: A null hypothesis is a statement, in which there is no relationship between two variables. An…
Q: A type I error A. arises when the false null hypothesis is not rejected. OB. is the rejection of a…
A: A type I error
Q: O Rejecting a true alternative hypothesis. O Rejecting a true null hypothesis. ) Failing to reject a…
A: Type II error is denoted by The type II error occurs when we accept the false null hypothesis.
Q: 10. A two tailed test is one where A. Results in only one direction can lead to rejection of the…
A: As you have posted multiple questions, we have provided answer for first 3 questions, as per our…
Q: Express the null hypothesis H and the alternative hypothesis Hin notation form in the following…
A: Given that Population mean μ =120000.00
Q: Which of the following risks a Type II error?
A: Here for Type 2 error in hypothesis
Q: 7. When designing an hypothesis test, one of the first decisions that needs to be made is which…
A: Type 1 error - probability of rejecting a null hypothesis when it is true Type 2 error - probability…
Q: -Find the correct null hypothesis and for each correct alternative hypothesis 3. Suppose you hear a…
A: The claim is that the average is higher than 78.
Q: A college professor states that this year's entering students appear to be smarter than entering…
A: From the provided information, The college's records indicate that the mean IQ for entering students…
Q: 3. The local school system feels that the number of student absences in this county is lower than…
A: We are given that: Population mean=μ=5.6sample mean=x¯=4.9p-value=0.0052 To answer the question we…
Q: When conducting a hypothesis test, we hope to avoid commiting a type 1 error, which is: 1. Not as…
A: We know that when we are going to test hypothesis their can be two types of errors happens. 1. type…
Q: A Type I error is defined as a. rejecting a null hypothesis when it is in fact true b.…
A: Statistical hypothesis testing has two types of errors: 1. Type 1 error 2. Type 2 error
Q: Null vs Alternative State the null and the alternative hypotheses of the following statements and…
A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…
Q: -Find the correct null hypothesis and for each correct alternative hypothesis 7. Suppose you hear a…
A: Solution
Q: A study done on a marriage counseling course showed that the proportion of couples for which the…
A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…
Q: (a) Write the claim mathematically and identify Ho and Ha Which of the following correctly states Ho…
A: Given data : sample size, n =22 sample mean, x̄ = 24623 sample standard…
Q: of the following below could be the null hypothesis ? ( look at the ima
A: In this case, the claim is that students are getting less than about 12 hours per 24 hours.
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- A tire manufacturer wants to get an estimate of the average length of road that can be traveled (in 100 km) by a brand new tire, until the tire breaks. The assumption is that the tires are used fairly in relatively the same road conditions. For this purpose, research has been carried out on the tire production and obtained the average road that can be traveled until the tire is damaged, which is 25,300 km, and the standard deviation is estimated at 6,100 km. - What is the probability that the tire can reach more than 25,000 km.Rejection of the null hypothesis in the two-sample case imp;ies thatr the a. samples are different on the trait of interest b. populations from which the samples are drawn are different on the trait of interest c. samples are not different on the trait of interest d. populations from which the samples are drawn are not different on the trait of interest20. Which of the following is a null hypothesis? a. Pregnant women who drink cranberry juice will have lower urine bacterial counts than those who do not drink cranberry juice. b. The urine bacterial count of pregnant women who drink cranberry juice will be lower or equal to that of pregnant women who do not drink the juice. c. There will be a difference between ingestion of cranberry juice and among pregnant women who do and do not have high urine bacterial counts.
- Which of the following is not a correct way to state a null hypothesis? A Ho:P1- P2= o B Ho: H1 - H2 =0 C Ho: H=0 D Ho: p=0.5Which of the following is an example of a Type 2 error? Rejecting a false null hypothesis. Rejecting a true null hypothesis. Failing to reject a false null hypothesis. Failing to reject a true null hypothesis.2. A certain health magazine stated * that 14% of men said they used exercise to reduce stress. At a=0.05 test the claim wherein, from a random sample of 100 men who were selected, 10 said that they used exercise to relieve stress. Which of the following is the appropriate null hypothesis of the problem? A. p = 14% B. p ≤ 14% C. p≥ 14% D. p 14% O A. B. D.
- Discuss one of the following topics. Write a brief but complete essay (minimum 200 words) in which you answer one the following questions. Cite any sources that you use. (a) What is a null hypothesis, H0 ? Describe its importance.You watch people exiting Dodgers stadium after a game and you write down the number of males and the number of females that exit the stadium past you during the 20 minutes that you spend watching. You assumed that there would be a perfectly equal number of males and females attending a Dodgers game, but you look at the number of males and females that you actually counted, and you see if you still think that is actually true. What kind of hypothesis test would allow you to do this? a. One-Factor, Independent-Measures ANOVA b. Two-Factor ANOVA c. Correlation/Regression d. Chi-Square Goodness of FitWhich of the following statements is true if when using null hypothesis testing, our p value (in the "sig" column of SPSS output) is 0.051? Reject the null hypothesis Fail to reject the null hypothesis Reject the alternative hypothesis Fail to reject the alternative hypothesis
- When is a researcher at risk of making a type 2 error? whenever H0 is rejected whenever H1 is rejected whenever H0 fails to reject the risk of a type 2 is independent of the decision from a hypothesis testIf a hypothesis test is performed and the null hypothesis is rejected in favor of the alternative hypothesis, does the test prove that the alternative hypothesis is correct? Choose the correct answer below. A.The test does not prove the alternative hypothesis correct, because only one test was done, and it takes at least hypothesis tests to prove a claim about a population parameter. B.The test does not prove the alternative hypothesis correct, because of the possibility of rejecting the null hypothesis when the null hypothesis is true. C.The test proves the alternative hypothesis correct, because once the null hypothesis is rejected, the only possibility that remains is for the alternative hypothesis to be true. D.The test proves the alternative hypothesis correct, because it shows that all the evidence suggests that the alternative hypothesis is true.which of the following statements are true about ALTERNATE hypotheses? Please select all that apply. They posit that any relationship we observe between two variables is true in the population but not necessarily in samples from that population. They posit that there is a relationship between two variables in the population. They posit that any relationship we observe between two variables is the result of random chance They posit that any relationship we observe between two variables is not the result of random chance They posit that there is no relationship between two variables in the population. which of the following statements about p values are correct? Please select all that apply. They imply larger effect sizes They prove that the alternate hypothesis is true They correspond to the probability that we would observe a relationship between two variables in our sample, if there was no true relationship between them in the population They prove that the null hypothesis is true…