When a null hypothesis can be rejected by an extreme result in one direction only, a two-tail test is appropriate. a) True b) False
Q: A psychologist specializing in marriage counseling claims that, among all married couples, the…
A:
Q: Which of the following null hypothesis is considered two tail test? HO: μ ≥77and HO: µ#77 H1: μ #77…
A: a. HO: mu ≥ 77 and HO: µ≠77 Option a represents a two-tailed test because it includes both a…
Q: □ True □ False a) When a claim or assertion is involved in hypothesis testing, the null…
A: 1)False 2)True 3)False
Q: f you conduct a hypothesis test and, based on your p-value, you decide to reject the null…
A: Solution-: If you conduct a hypothesis test and, based on your p-value , you decide to reject the…
Q: If the null hypothesis is not rejected when the null hypothesis is in error, then what has happened?…
A: From the above question the null hypothesis is not rejected when the when the null hypothesis in…
Q: In a criminal trial where the null hypothesis is innocence, a Type I error is made when: A. a guilty…
A:
Q: 37 29 16 null hypothesis? no Z 213 321 534 300 350 650
A: Given, In Bloomington, they randomly sampled 300 female voters and 350 male voters. They collected…
Q: A beverage company claims that the mean amount of soda in their bottles is at least 12 ounces. There…
A: A beverage company claims that the mean amount of soda in their bottles is at least 12 ounces.
Q: Assume that the null hypothesis is really TRUE. Under that condition, any difference in group means…
A: Given: Assume that the null hypothesis is really TRUE. Under that condition, any difference in…
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: B. If the National Cancer Institute researchers were incorrect in their conclusion that there is no…
A: Type I error: The type I error if the null hypothesis is rejected when it is actually true. Type II…
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: In an hypothesis test the decision was made to fail to reject the null hypothesis. The null…
A: Types of errors:Type-I error: Rejecting the Null Hypothesis H0, when in fact H0 is true. It is…
Q: Express the null hypothesis H and the alternative hypothesis Hin notation form in the following…
A:
Q: If a researcher is wrong in his decision and he rejects the null when the null is true, what type of…
A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…
Q: he question is asking to check whether the program is successful, hence, shouldn't be the null…
A: Given: Before After 39 44 25 25 39 39 6 13 40 44 27 34 30 34 22 29 21 30…
Q: If your null and alternative hypothesis are: Ho:p = 0.16 H:p < 0.16 %3D Then the test is: right…
A: State the hypotheses. That is, the population proportion equals 0.16 That is, the population…
Q: Aaron wanted to know if a new ad promotion would bring more people into his store if he published a…
A: The provided information is as follows:The population proportion of the promotion would be…
Q: A goodness-of-fit-test is always conducted as a A) lower-tail test. B) upper-tail test. C)…
A: The goodness of fit test is also called as the Chi-square goodness of fit test is a statistical…
Q: If you reject the null hypothesis, you may be making. O a Type Il error O a Type lerror O a Type Il…
A: Type I Error : Type I error occurs when we reject true null hypothesis. Type II Error : Type II…
Q: An hypothesis differs from a theory in that?
A: Define hypothesis and theory:Hypothesis:Hypothesis is an assumption about the parameter of the…
Q: If your null and alternative hypothesis are: Но:р 3D 0.24 H:р< 0.24 Then the test is: O two tailed O…
A: Given: H0: p=0.24H1: p<0.24 The claim is p less than 0.24. The alternative hypothesis contains…
Q: Ahypothesis test of a claim will be conducted. The null hypothesis is the following: “The car’s…
A: a. Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…
Q: If your null and alternative hypothesis are: Họ:P1 = P2 H1:P1 + P2 Then the test is: O left tailed O…
A: Given information- We have given a hypothesis. Null Hypothesis H0:p1=p2Alternate Hypothesis Ha:p1≠p2…
Q: 3. In the US court system, a defendant is assumed innocent until proven guilty. Suppose that you…
A: Please note that as per our guidelines if multiple sub-parts are there in a question we can answer…
Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…
A: Reject the null hypothesis (H0). This means that you have enough statistical evidence to support the…
Q: Only c and d
A: Given: p=0.60 SE=0.0274 The sample proportion p^ is obtained as below: p^=xn=182320=0.5688 c) The…
Q: Is there a difference between community college statistics students and university statistics…
A: let's go through this step-by-step:The problem is asking us to determine if there is a difference…
Q: Which of the following is an accurate definition of a Type I error? A.) Rejecting a false null…
A: Answer - Which of the following is an accurate definition of a Type I error?
Q: The error of rejecting a true null hypothesis is Select one: O a. a Type |l error O b. is the same…
A: Type 1 error: Rejecting the null hypothesis when it is in fact true is called a Type I error. Type…
Q: 2) Assume you are conducting a hypothesis test to determine if pesticides cause cancer in rural…
A: A hypothesis test is to be conducted for determining whether pesticides cause cancer in rural areas…
Q: Assume that the null hypothesis is really FALSE. Under that condition, any difference in group means…
A: Given: Assume that the null hypothesis is really FALSE. Under that condition, any difference in…
Q: Ho: μ H₁: 13 kg > 13 kg Level of significance: a = = 0.025 Sample size: n = 36 Test statistic: t =…
A: Given: H0 : μ = 13 kg H1 : μ > 13 kg Sample size n = 36 Significance level α = 0.025…
Q: In leaving for school on an overcast April morning you make a judgment on the null hypothesis: The…
A: Given: In leaving for school on an overcast April morning you make a judgment on the null…
Q: Type I error occurs if you reject the null hypothesis when in fact it is true. a.)True b.)False
A:
Q: A teacher is comparing the mean study time of his freshmen and senior students. He believes that his…
A:
Q: a. Is it possible to make a Type I error? Explain your answer. b. Is it possible to make a Type II…
A: a. Is it possible to make a Type I error? Answer:Option C) is correctYes, it is possible. A Type…
Q: A teacher is comparing the mena study time of his freshmen and senior students. He believes that his…
A:
Q: A doctor is asked to give an executive a thoroughphysical checkup to test the null hypothesis that…
A:
Q: Is the statement a valid null hypothesis? Ho : 19 = 7
A: Ans#- Is the statement a valid null hypothesis? H0: 19 = 7
Q: Can the null hypothesis be a greater than or less than or is it always equals?
A: The null hypothesis H0 is generally formulated with an equality sign.The question is whether the…
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 research hypothesizes that people will be more likely to believe a news article that supports…
A: The research hypothesizes that people will be more likely to believe a news article that supports…
Q: For the following null and alternative hypothesis describe the scenario of an instructor making a…
A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…
Q: 2.) A packaging company advertises that their product weighs on average 16 oz. You feel t lighter…
A:
Q: When the null hypothesis is not rejected, it is possible a Type I error has occurred. not possible a…
A: Given that the null hypothesis is not rejected.
Q: data was recorded along with the department they belong. The results obtained using MINITAI shown…
A: DF = (Number of Rows -1)( Number of column -1 )
When a null hypothesis can be rejected by an extreme result in one direction only, a two-tail test is appropriate.
a) True
b) False
Step by step
Solved in 2 steps
- Which set of numbers would correspond to a hypothesis test with the greatest power? Cohen's d = 0.6 & n = 500 O Cohen's d = 0.6 & n = 50 O Cohen's d = 0.5 & n = 50 O Cohen's d = 0.5 & n = 500An ANOVA test is conducted of the grades earned by students from a math professor, who taught 3 sections of the same class: morning, afternoon and evening. The decision was to Reject the null hypothesis. Does the test tell which mean is significantly different? yes O noPart C, D and E please, Thank You! D) What is the null hypothesis? E) Reject the null hypothesis because the P-value is greater than the significant level, a Reject the null hypthosesis because the P-value is less than or equal to the significant level, a Fail to reject the null hypothesis because the P-value is greater than or equal to the significant level, a Fail to reject the null hypothesis because the P-Value is greater than the significant level, a
- IN A TWO TAIL TEST FOR THE POPU;ATION MEAN IF THE NULL HYPOTHESIS IS REJECTED WHEN THE ALTERNATIVE IS TRU , THEN:While testing a hypothesis, we can do either Type I error, or Type II error, but not both of them. Select one: a. True b. FalseConsider the null hypothesis Ho: The man is innocent of crime. Ha: The man is guilty of crime. What is the Type I error? What is the Type II error?
- 19. A campaign team for a candidate running for local office uses a random survey. They are interested in using a hypothesis test to see if there is strong evidence that their candidate will obtain more than 50% of the vote and win the election. Which of the following descriptions would represent a Type I error? d) e) a) b) c) The campaign team rejects the null hypothesis and concludes that the candidate will win more than 50% of the vote, but then the candidate loses the election. The campaign team fails to reject the null hypothesis and concludes that there is not enough evidence to conclude that their candidate has more than 50% of the vote, but then the candidate wins the election. The campaign team fails to reject the null hypothesis and concludes that the candidate will win more than 50% of the vote, but then the candidate loses the election. The campaign team rejects the null hypothesis and concludes that there is not enough evidence to conclude that their candidate has more…A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: Ha: p≥ 0.3 р < 0.3 What type of test is being conducted in this problem? A. Right-tailed test B. Left-tailed test C. Two-tailed testWhen a new drug is created, the drug company must test it before receiving the necessary permission from the Food and Drug Administration (FDA) to market the drug. Suppose the null hypothesis is "the drug it's not safe." What is a type II error? explain clearly a. Concluding that the drug is safe when, in fact, it is not. b. Not concluding that the drug is safe when, in fact, it is. c. Concluding that the drug is safe when, in fact, it is. d. Not concluding that the drug is not safe when, in fact, it is not.
- In Bloomington, they randomly sampled 260 female voters, and 190 male voters. They collected data on the respondent's opinion on an environmental bond issue. We want to know whether there is good evidence that one's gender influences whether a person is for or against the bond issue. Use α = 0.05. For Bond Issue Against Bond Issue Total 52 260 17 190 69 450 Men Women Total a) What is the correct null hypothesis? O Ho: P₁ P2 P3 P4 O Ho: P₁ P2 = P3 P4 O Ho: Gender and Bond Issue Attitudes are Independent. O Ho: Gender and Bond Issue Attitudes are dependent. b) Fill in the expected values, round answers to 1 decimal place. For Bond Issue Against Bond Issue Expected Values Men Women c) Chi Square Test Statistic = 208 173 381 Degree's of Freedom = d) The p-value = 1 decimal place 3 decimal places e) What is the correct conclusion? O Because the p-value is greater than alpha, we reject the Ho. There is statistical evidence that attitudes on the bond issue are dependent on gender. O Because…What is also the rejection criteria?A scientist has read that the mean birth weight, u, of babies born at full term is 7.5 pounds. The scientist, believing that u is different from this value, plans to perform a statistical test. She selects a random sample of birth weights of babies born at full term and finds the mean of the sample to be 7.9 pounds and the standard deviation to be 1.6 pounds. Based on this information, answer the questions below.