When running a test, if p-value exceeds the significance level α then Group of answer choices we reject the null hypothesis All of these. we fail to reject the null hypothesis. we can't make any decision about the null hypothesis

Q: A hypothesis test is performed at significance level a = 0.05. The p-value is found to be 0.001.…

A: Given : α = 0.05 p-value = 0.001

Q: You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby…

A: Solution

Q: Find the​ P-value for the indicated hypothesis test with the given standardized test​ statistic, z.…

A: Given : z = 1.96 α = 0.1 Right tailed test P-value = Pz>1.96 P-value =1-Pz≤1.96 P-value =1-0.9750…

Q: Assumer significance level of a equals .05 and used to giving information to complete parts ANB…

A: From the provided information, Level of significance (α) = 0.05 The P value obtained from hypothesis…

Q: (b) Based on your answer to part (a), choose the correct statement. The value of the test statistic…

A: We have given that the hypothetical mean 5, the critical value is -1.282 and test statistic is…

Q: Find the​ P-value for the indicated hypothesis test with the given standardized test​ statistic, z.…

A:

Q: 1. State the null hypothesis and the alternative hypothesis. 2. What should be used as test…

A:

Q: The null hypothesis is Ho: H1 = 2 and the alternative hypothesis is H: H > H2. The data in the…

A: Given that  Population 1 Sample size (n)=8 We will use Paired t test

Q: State the conclusion for the test. O A. Fail to reject the null hypothesis. There is not sufficient…

A:

Q: a) state the null and alternative hypotheses of a one-sided significance test to test that the…

A: Assume that the variance of work hours per week for not married Americans (1st population) is σ12…

Q: adult toy reseller claims that only 4% of his production is defective. In a random sample of 120…

A:

Q: State the conclusion for the test. O A. Fail to reject the null hypothesis. There sufficient…

A: a)  Sample Mean  27.04   Standard Deviation (S1​)                       7.86…

Q: f your claim is in the null hypothesis and you reject the null hypothesis, then your conclusion…

A: Hypothesis Testing :  A hypothesis test is a standard procedure for testing a claim about a property…

Q: Identify the type I error and the type II error for a hypothesis test of the indicated claim.   The…

A: For a hypothesis test of the indicated claim :   The percentage of adults who have a job is less…

Q: The chi-square goodness-of-fit test provides a method for performing a hypothesis test about the…

A:

Q: In a significance test, if α is greater than the p-value, (a) accept the alternative hypothesis.…

A: It is to be found that whether the null hypothesis is to be accepted or rejected when the α-value is…

Q: The null hypothesis (Ho) in a hypothesis test usually states that: O the probability of error will…

A:

Q: Which statement is NOT TRUE about the hypothesis test? A. A hypothesis test used to conclude about a…

A: statement B is not true

Q: Which statement is NO1 true about hypothesis tests? Hypotheses are statements about the population…

A: Hypothesis testing is one of the main concept of inferential statistic which help in drawing the…

Q: Identify the statement as null or alternative hypothesis. If the statement is a null hypothesis…

A: The hypothesis of no differences is called as null hypothesis. The hypothesis which is complementary…

Q: If we reject the null hypothesis, we conclude that Select one: a. The test is statistically…

A: Solution :  If we reject the null hypothesis, we conclude that, b. There is enough statistical…

Q: etermine whether the claim stated below represents the null hypothesis or the alternative…

A: From the given information, The claim of the problem is at least 87​% of people had at least one…

Q: The t-table is to be used to get the critical or tabulated value when conducting a z-test . b. The…

A:

Q: You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby…

A: Solution

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A: The objective is to find the two types of hypotheses used in a hypothesis test.

Q: After you provide a statement of the null hypothesis, you ______. Group of answer choices compare…

A: Given statement is  After you provide a statement of the null hypothesis, you_____ ?

Q: The test statistic for the hypothesis test is:  (please round to two decimal places) The p-value…

A: From the output, the test statistic is 15.36. Thus, the test statistic for the hypothesis test is…

Q: The manager at Costello Drug Store assumes the company’s employees are honest. However, there have…

A:

Q: State the null and alternative hypotheses Calculate the expected results for the hypothesis test…

A: The provided sample means are shown below: Xˉ1=1.1\bar X_1 = 1.1  (June Toads) Xˉ2=2.1\bar X_2 = 2.1…

Q: Tru or False? For a right-tailed test, reject the null hypothesis only if P < α. For a left-tailed…

A: Rejection rule: For both right and left tailed tests, reject the null hypothesis if P value is less…

Q: A machine has to be repaired if there are more than 10% defectives among all items it produces in a…

A: A null hypothesis could be a statement, during which there's no relationship between two variables.…

Q: A Type I error is making a correct decision in a hypothesis test. when a correct null hypothesis is…

A: Given data A type 1 error is

Q: A manufacturer of apple phone charges claims that only 4% of his production is  defective. In a…

A: Givensample size(n)=120p^=0.0499α=0.01

Q: What decision do you make about the hypothesis test? We will accept the null hypothesis We reject…

A: Given data : sample size, n =30 sample mean, x̄ = 107 sample standard deviation,s=…

Q: Possible answers :   Reject H0. At the 5% significance level, the test results are not…

A: In given Hypothesis testNull Hypothesis : µ = 7Alternative Hypothesis : µ ≠ 7The test statistic is…

Q: State the conclusion for the test. O A. Fail to reject the null hypothesis. There is not sufficient…

A:

Q: When a hypothesis test is being carried out, there are four different situations that can occur…

A:

Q: Rock-paper-scissors is a hand game played by two or more people where players choose to sign either…

A: Rock-paper-scissors is a hand game played by two or more people where players choose to sign rock,…

Q: The statement “If there is sufficient evidence to reject a null hypothesis at the 5% significance…

A: Decision rule: If p-value is less than or equal to significance level, the null hypothesis is…

Q: A teacher believes that 85% of students in the class will want to go on a field trip to the local…

A: Given Data: x=39 n=50 p^=xn=3950=0.78   Null and Alternate Hypothesis: H0: p=0.85HA: p≠0.85

Q: When conducting a hypothesis test, what would it mean if the researcher obtains a negative test…

A: According to the given information in this question We get the negative test statistic because of…

Q: Suppose you have a hypothesis test which never rejects the null hypothesis, no matter the value of…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: 0.09 . If the level of significance is 5 % . What is the conclusion ? Not enough information…

A:

Q: Find the​ P-value for the indicated hypothesis test with the given standardized test​ statistic, z.…

A: It is given that Test statistic = 1.85 Test : right tailed.

Q: A hypothesis test is performed at significance level a =0.05: The p-value is found to be 0.001. What…

A: INTRODUCTION :   level of significance  :       The probability  α that the value of the test…

Q: Effect size is most important when we reject the null hypothesis fail to reject the null hypothesis…

A: Effect size gives the meaningful relationship between the groups of observations under study. We…

Q: What are the two decisions that you can make from performing a hypothesis test? ..... What are the…

A:

Q: Can you show an applied example, (can be fictitious or real) (or taken from the internet)... where…

A: Let suppose the mean cholesterol level among young men suffering from heart problems is 220 and…

Q: When a researcher fails to reject the null hypothesis (H0) The obtained statistical value is larger…

A: The decision rule for the hypothesis test using critical value for right tailed test (one tail) is,…

Q: Juestion #4 Assume your a is .001. What should be their decision about the null hypothesis and the…

A: To determine the rejetion of null hypothesis by assuming α = 0.001. To determine this as per given…

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.