Setting the alpha value at α = .10 instead of α = .05 increases the chances of: A. making a Type I Error B. making both a Type I and Type II Error C. decreasing power D. making a Type II Error
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Setting the alpha value at α = .10 instead of α = .05 increases the chances of:
| A. |
making a Type I Error |
|
| B. |
making both a Type I and Type II Error |
|
| C. |
decreasing power |
|
| D. |
making a Type II Error |
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- By selecting a smaller alpha level, it _____.If the value of Cronbach’s alpha is 0.07, it means ___________; a. Research instrument is not reliable b. Research instrument is internally consistent c. Data is reliable d. Data is internally consistentPerform a chi square test of the independent on the following data given alpha = 0.05 and the claim is dependent Red. Blue. Green. orange Year. 2018 923. 258. 196. 68 2019. 922. 289. 149. 116 Find Step1 Step 2 Step 3 Step 4
- A teacher wants to know if her students spend more money on their lunches than the national average (μ = $2.48). Her 20 students spend an average of $3.50 (Ŝ = 1.20). Assuming an alpha of .05, do her students spend significantly more on lunch than the national average? Group of answer choices Yes NoFor an alpha = .10 and degrees of freedom, df = 32, what is the one-tailed t-value? Give your answer exactly as it appears in the table, with three decimal places.A school bus driver records the time (in minutes) it takes to commute to school for six days.Those results are: 25, 22, 17, 20, 15, and 10. Using an alpha value of ? = 0.10, test if the meantime is significantly different than 20 minutes.
- The article in the ASCE Journal of Energy Engineering (1999, Vol. 125, pp.59-75) describes a study of the thermal inertia properties of autoclaved aerated concrete used as a building material. Five samples of the material were tested in a structure, and the average interior temperatures (°C) reported were as follows: 23.01, 22.22, 22.04, 22.62, and 22.59. Test that the average interior temperature is equal to 22.5°C using alpha (a) = 0.05. This problem is a test on what population parameter? What is the null and alternative hypothesis? What are the Significance level and type of test? What standardized test statistic will be used? What is the standard test statistic? What is the Statistical Decision? What is the statistical decision in the statement form?whats the value of alpha?1 - 0.90 = 0.1= 0.1 x 100 = .10 which makes a = .10? is the the correct (one of the correct equations) to find the alpha of a statistic?
- What is the z-score if mu = 89 , sigma=11.5, and x = 82 ?Do one of the following, as appropriate: (a) find the critical value of ??/2 ; (b) find the critical value of ??/2 a. 1- ? = 95%; n = 20; ?2 is unknown; population is normalAssume we wanted to show that the true average height of students is less than 63 inches. Let's say we tested at an alpha of 0.05, and found a p-value of 0.0315. Which would be an appropriate conclusion and interpretation? A) With an alpha of 0.05, and a p-value of 0.0315, we reject the null and state we have sufficient evidence to support that the true average height of students is less than 63 inches. B) With an alpha of 0.5, and a p-value of 0.0315, we reject the null and state we have sufficient evidence to support that the true average height of students is less than 63 inches. C) With an alpha of 0.05, and a p-value of 0.0315, we fail to reject the null and state we have insufficient evidence to support that the true average height of students is less than 63 inches. D) With an alpha of 0.05, and a p-value of 0.0315, we fail to reject the null and state we have sufficient evidence to support that the true average height of students is greater than or equal to…