How does p-value relate to null hypothesis?
Q: The janitor calculates a p-value for the hypothesis test of approximately 0.113. Choose the correct…
A: here given p-value = 0.113 and significance level = 0.01 p-value is probability of getting extreme…
Q: Suppose the level of significance α was 0.10 and the p-value is 0.084 The conclusion would be to...…
A: We have givan hypothesis..
Q: You are conducting a hypothesis test about income where the research (alternative) hypothesis is…
A: It is given that Population mean, μ = 60000 Sample mean, x̄ = 65000 Standard error, SE = 130
Q: O 1. The null hypothesis states that in the general population there is no change, no difference, or…
A: Null hypothesis: The hypothesis which is usually a no difference or neutral attitude is called the…
Q: You wish to test the following claim (Ha) at a significance level of a 0.02. H.:P1 = p2 Ha:Pi # P2…
A:
Q: Question 6 ( The null hypothesis is not rejected at a significance level of 0.05. Therefore the null…
A: Rejection criteria:- • When calculated p-value is less than or equal to significance level, you…
Q: se a 0.05 level of significance and te: tate the null and alternative hypothe : The two populations…
A: Given starting salaries of Public Accountant and Financial Advisor are: Public Accountant(P)…
Q: Test the claim that the mean GPA of night students is smaller than 2 at the .005 significance level.…
A:
Q: Which of the following is NOT true when we increase the significance level of a hypothesis test?…
A:
Q: James is a school psychologist who wants to implement stress coping skills to help his students. His…
A: Here the direction of the test is to the left.
Q: You wish to test the following claim (H) at a significance level of a = 0.01, Ho: P₁ Ha: P1 P2 P2…
A: Givensignificance level(α)=0.01The null and alternative hypothesis isH0:p1=p2Ha:p1>p2x1=202sample…
Q: You wish to test the following claim (Ha) at a significance level of a = 0.05.
A: From given data, Significance level,
Q: Which of the following statement(s) is/are true? If the (x) is more than the p-value, there is…
A: If the p-value is greater than alpha, you accept the null hypothesis. If p-value is less than alpha,…
Q: (ou wish to test the following claim (Ha) at a significance level of a = 0.01. H.:P1 = P2 Ha:P1 > P2…
A: Gfygsdb
Q: (c) In the test of a certain hypothesis the p-value corresponding to the test statistics is 0.0316.…
A: Solution: In statistical hypothesis testing there are two approach or method of decision. 1)…
Q: The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the…
A: Given information p-value = 0.1005
Q: Use a 0.05 significance level to test the claim that there is a difference between the actual and…
A: T test is the type of parametric test. It follows the assumption of normal distribution. It compare…
Q: a. If a = 0.01, state the decision rule for the hypothesis. (Round to two decimal places as needed.)…
A: For sample 1, sample size = 11, sample variance = 1468 For sample 2, sample size = 21, sample…
Q: Which of the following is the correct way to report the results of a hypothesis test and a measure…
A:
Q: There is sufficient evidence to warrant rejection of the claim that the first population proportion…
A:
Q: c) In the test of a certain hypothesis the p-valuecorresponding to the test statistics is 0.0316.…
A: Given that P-value=0.0316 i) 0.01 level of significance ii) 0.05 level of significance iii) 0.10…
Q: Newspaper headlines at the time and traditional wisdom in the succeeding decades have held that…
A:
Q: A statistical test of hypothesis produces the P-value P = 0.604. Will the null hypothesis be…
A: Given : P-value = 0.604 level of significance = 0.05 Here : P-value : 0.604 > 0.05
Q: Find the value of the standard score, z, and determine whether to reject the null hypothesis at a…
A: here given data is:H0:μ=4.5H1:μ>4.5we have to find out the value of standard score, critical…
Q: You wish to test the following claim (Ha) at a significance level of a Ho: p > p2 Ha: P1 P2 You…
A: Assume that p1, p2 are the proportions of 1st and 2nd populations, respectively.
Q: Which of the following is true? A. a high R2 indicates that the model has a high goodness-of-fit. B.…
A:
Q: Test the claim that the proportion of men who own dogs is significantly different than the…
A: The null and alternative hypothesis be two-tailed test statistic = 2.2p-value = 0.0285
Q: A researcher is designing an experiment. Ultimately, she is hoping to reject her null hypothesis…
A: From the provided information, The researcher is hoping to reject her null hypothesis (i.e. show…
Q: With a = .01, complete step 4 of the hypothesis testing procedure. What decision should the…
A: From the above question The independent variable X is Chocolate eaten during week And The dependent…
Q: In 2011, a U.S. Census report determined that 66% of college students are working students. A…
A:
Q: Which of the following are FALSE statements? 1. If there is sufficient evidence to reject a null…
A: Q1) A . I & II only first statement is false The p-values is affected by the sample size. Larger…
Q: A researcher has observed 500 vehicles at a stop sign in a suburban neighbourhood and recorded the…
A: We need to test the Hypothesis for the given data.
Q: Using the accompanying data of restaurant sales, determine if the variance of weekday sales is the…
A: deteThe sales data for the three variables lunch, dinner, and delivery has been provided as…
Q: d the value of the standard score, z, and determine whether to reject the null hypothesis at a 0 10…
A:
Q: the correct way to report the results of a hypothesis test and a measure of effect size using a…
A: Hypothesis Testing : The hypothesis is an assertion regarding the unknown population parameter. A…
Q: Past studies have indicated that the percentage of smokers is estimated to be about 35%. Given the…
A: a) From the given information, the claim of the problem is the percentage of smokers has reduced.…
Q: Based on certain data, a null hypothesis is rejected atthe 0.05 level of significance. Would it also…
A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…
Q: test statistic = What is the p-value for this sample? (Round to 3 decimal places.) p-value = The…
A: For sample 1 : We have that the sample size is N1=371N1 = 371 , the number of favorable cases is…
Q: In a clinical trial, 24 out of 852 patients taking a prescription drug daily complained of flulike…
A: From the provided information, Sample size (n) = 852 From which 24 taking a prescription drug daily…
Q: Which of the following relates to the rejection of the null hypothesis when it is actually false?
A: The type I error is defined as the rejection of the null hypothesis when it is actually true. The…
Q: This Question: 4 pts 1 of 9 (0 complete) This Quiz: 45 pts possible Assume a significance level of a…
A: Given that, Original claim: More than 54% of adults would erase all of their personal information…
Q: Which of the following relates to the acceptance of the null hypothesis when it is actually false?…
A: Type I error - It is the error caused by rejecting a null hypothesis, when it is actually true. Type…
Q: Question 23 The null Hypothesis is rejected, if the P-value is larger than significance level. True…
A: We have to determine the given statement is true or false.
[13] How does p-value relate to null hypothesis?
a. Reference for making decisions about the null hypothesis
b. Illustrates how bad the null hypothesis was crafted
c. Provides a scale to check the validity of the null hypothesis
d. All of the above
Step by step
Solved in 2 steps with 1 images
- (c) Calculate the test statistic. d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.Answer all A, B, C and D questionsThe weekly expenditure on groceries of a random sample of 100 family households was recorded. It was estimated that the mean expenditure was approximately $240. With rising interest rates and petrol prices, it was anticipated that grocery expenditure might decrease. Which hypothesis test would you use to test this claim? 1.One tailed, one sample t-test 2.Two tailed, one sample t-test 3.One tailed, z-test 4.One-tailed Paired Samples t-test 5.Chi Square
- Looking at youth depression scores from a general sample of random children in the US, we want to determine if our sample is significantly different than the national average of scores of children with depression in the US. The national average of scores on a measure of depression is 5 points. We have no reason to assume it will be higher or lower than the US national average. The sample: 11 9 12 3 3 4 13 1. What is the null and alternative hypotheses? Do not specify any directionality. 2. What did you discover (using 95% Cl)? Provide an interpretation.(c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? O A. Fail to reject H, because the P-value is greater than the significance level. O B. Reject Hn because the P-value is less than the significance level. O C. Fail to reject H, because the P-value is less than the significance level. O D. Reject H, because the P-value is greater than the significance level. (d) Interpret the decision in the context of the original claim. O A. At the 5% level of significance, there is sufficient evidence to support the claim that the mean class size for full-time faculty is fewer than 32 students. O B. At the 5% level of significance, there is sufficient evidence to support the claim that the mean class size for full-time faculty is more than 32 students. O C. At the 5% level of significance, there is not sufficient evidence to support the claim that the mean O D. At the 5% level of significance, there is not sufficient evidence to support the claim…(e) If the researcher decides to test this hypothesis at the x = 0.05 level of significance, will the researcher reject the null hypothesis? Yes O No
- Which is NOT a correct statement about the Null hypothesis a. The average days per week that elementary students lifted weights was the same for 2011 and 2013 b. The average time spent in sedentary behaviors is not different between male and female c. The mean body mass index for adults in County A is not different from the mean body mass index in adults in County B d. The mean sleep time for 4th grade students is different from the mean sleep time for 5th grade students.2.3 Assigned Media The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a = 0.01, (b) a = 0.05, and (c) a= 0.10. P=0.0618 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? A. Reject Ho because the P-value, 0.0618, is greater than a= 0.01. B. Reject Ho because the P-value, 0.0618, is less than a =0.01. C. Fail to reject Ho because the P-value, 0.0618, is less than oa= 0.01. O D. Fail to reject Ho because the P-value, 0.0618, is greater than a= 0.01. Click to select your answer and then click Check Answer. parts Type here to search 0 耳 PrtScn Home End F1 F2 F3 F4 F5 F6 F7 F8 F9 %23(b) (c) (d) What is the value of the sample test statistic? Find (or estimate) the P-value. Based on your answers in parts (a) to (c), will you reject or fail to Teject the null hypothesis? Are the data statistically significant at level a? 6. Professor Jennings claims that only 35% of the students at Flora College work while attending school, Dean Benata thinks that the professor has underestimated the number of students with part-time or full-time jobs. A random sample of 76 students shows that 36 have jobs. Do the data indicate that more than 35% of the students bave jobs? Use a 5% level of significance. What are we testing in this problem? i) single proportion ii) single mean a) What is the level of significance? State the null and alternate hypotheses. what sampling distribution will you use? What assumptions are you making? b) What is the value of the sample test statistic? c) Find (or estimate) the P-value. d) Based on your answers in parts (a) to (c), will you reject or fail to…
- If p-value is less than the significance level (alpha), what is the decision of a hypothesis test? a. Do not reject Ho b. Neither reject Ho c. Reject Ho d. We need data to answer this questionB. What is the test statistic? z=___ C. What is the P-value? P-value=___ D. What is the null hypothesis, and what do you conclude about it? H0: p≠0.09or H0: p<0.09 or H0: p=0.09 or H0: p >0.09 E. Reject the null hypothesis or Fail to reject the null hypothesis? Why? F. What is the final conclusion?Determine the null and alternative hypotheses