If you have a hypothesis test with alpha = 0.09, which of the following P-Values does NOT imply statistical significance? 0.023 0.07 0.163 0.055
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If you have a hypothesis test with alpha = 0.09, which of the following P-Values does NOT imply statistical significance?
- 0.023
- 0.07
- 0.163
- 0.055
hypothesis test with = 0.09
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- You wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005. Ho:μ=65.2Ho:μ=65.2 Ha:μ<65.2Ha:μ<65.2You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=101n=101 with mean M=62.6M=62.6 and a standard deviation of SD=7.9SD=7.9.What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001. Ho:μ=60.8Ho:μ=60.8 Ha:μ<60.8Ha:μ<60.8You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=626n=626 with a mean of M=59.5M=59.5 and a standard deviation of SD=7.7SD=7.7.What is the critical value for this test? (Report answer accurate to three decimal places.)critical value = What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = The test statistic is... in the critical region not in the critical region This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is less than 60.8. There is not sufficient evidence to warrant rejection of the claim that the population mean is less…You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. Ho:μ=81.1Ho:μ=81.1 Ha:μ<81.1Ha:μ<81.1You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=5n=5 with mean M=74.9M=74.9 and a standard deviation of SD=19.9SD=19.9.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is less than 81.1. There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 81.1. The sample data support the…
- Jimmy collected a random sample of 30 psychology majors and administered an IQ test. This group had an average IQ of M = 110. Compare this statistic to the general population, which has a mean IQ of 100 and a standard deviation of 15. Use alpha of .05 and a two tailed test Step 1: Pick the Test: Hypotheses: Step 2: Alpha: One-tail or two-tail: Decision Rule (What is the critical value): Step 3: Calculations Step: 4 Interpretation What did you do? What did you find (include APA)? What does it mean? Did you reject or fail to reject null hypothesis: APA? Step 4:Suppose that you are testing the following hypotheses: Ho: p = .80 and Ha: p # .80. You calculate a test statistic value of z = -6.08. True or False: At a 95% confidence level, which is alpha = .05, you should reject the null hypothesis. True FalseYou wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ=61.4Ho:μ=61.4 Ha:μ<61.4Ha:μ<61.4You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=108n=108 with mean M=59.7M=59.7 and a standard deviation of SD=10.2SD=10.2.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is less than 61.4. There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 61.4. The sample data support…
- You wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005. Ho:μ=77.3Ho:μ=77.3 Ha:μ≠77.3Ha:μ≠77.3You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=18n=18 with mean M=84M=84 and a standard deviation of SD=10.6SD=10.6.What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =Under what circumstances is a t statistic used instead of a z-score for a hypothesis test? Justin wants to know whether a commonly prescribed drug does improve the attention span of students with attention deficit disorder (ADD). He knows that the mean attention span for students with ADD who are not taking the drug is 2.3 minutes long. His sample of 12 students taking the drug yielded a mean of 4.6 minutes. Justin can find no information regarding σx , so he calculated s2x =1.96. Determine the critical region using a one-tailed test with alpha = .05. Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values). State your conclusions in terms of H0 (Should you reject the H0 or fail to reject/accept the H0). Based on your analysis, is there a relationship between the drug and attention span?You wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005. Ho:μ=62.1Ho:μ=62.1 Ha:μ>62.1Ha:μ>62.1You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=23n=23 with mean M=68.9M=68.9 and a standard deviation of SD=14.2SD=14.2.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is greater than 62.1. There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 62.1. The sample data…
- You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. Ho:μ=73.1Ho:μ=73.1 Ha:μ>73.1Ha:μ>73.1You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=223n=223 with mean M=74M=74 and a standard deviation of SD=5.2SD=5.2.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population means is greater than 73.1. There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 73.1. The sample data support…The manufacturer claims that your new car gets 23 mpg on the highway. You suspect that the mpg is less for your car. The 50 trips on the highway that you took averaged 19.8 mpg and the standard deviation for these 50 trips was 7.4 mpg. What can be concluded at the � = 0.10 level of significance? For this study, we should use The null and alternative hypotheses would be: �0: �1: The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is � Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The data suggest that the populaton mean is significantly less than 23 at � = 0.10, so there is statistically significant evidence to conclude that the population mean mpg for your car on the highway is less than 23. The data suggest that the population mean is not significantly less than 23 at � = 0.10, so there is…Suppose that you're running the following hypothesis test with a = 0.05 : H,:u= 2.00 H:u#2.00 a. If the population standard deviation is assumed to be 1.5, and a SRS of 25 observations yielded X = 2.57, then calculate the value of the test statistic that you would use to run this test. b. Determine the P-Value for the test statistic in part (a). c. Using the P-Value you calculated in part (b) state the Decision that you make about the null hypothesis. JUSTIFY YOUR DECISION.