our claim results in the following alternative hypothesis: Ha : μ < 152, which you test at a significance level of α=.001. Find the critical value, to three decimal places. zα = ____
Q: With Ha : µ > 139 you obtain a test statistic of z = 1.494. Find the p- value accurate to 4 decimal…
A: Given, Test statistics z=1.494
Q: Are the following results significant at α=.01? F(2,27) =10.56, p=.02
A: Given information- Significance level, α = 0.01 F (2, 27) = 10.56 We have given the p-value = 0.02
Q: In a population with o = 6, a score of X = 48 corresponds to z = 1.25. The mean for this population…
A: From the provided information, Standard deviation (σ) = 6 Z value = 1.25 And X = 48
Q: Which combination would lead you to Reject H0? α = .01 p-value = .059 α = .05 p-value = .059 α =…
A: Ans: Which combination would lead you to Reject H0?
Q: M1= 37 SS1=360 n1=11 M2= 43 SS2=576 n2=10 Assume two failed test and alpha= .05 What is the t value?
A: We have given that M1= 37, SS1= 360, n1=11, M2 = 43, SS2 = 576 n2=10
Q: Two researchers conduct separate studies to test Ho: p=0.50 against H₁: p*0.50, each with n=400.…
A: b Given that z=2.10 From the alternative hypothesis, the test is two tailed.
Q: The p-value = (Please show your answer to 4 decimal places.) The p-value is ____ α Based on this,…
A: Given that n = 266 , X = 162 Note : According to bartleby experts question answers guidelines an…
Q: “Normal” BMI is up to 25 kg/m2. A laboratory study is being conducted to determine energy…
A: Given, The researcher already subtract 25kg/m2 in each of the person. After subtraction the mean was…
Q: Assume df = 13 and alpha = 0.05. If Pearson's r = 0.510, then the null _____ and the relationship…
A: Here, df=13 r=0.510 α=0.05
Q: Two researchers conduct separate studies to test Ho: p=0.50 against H₁: p0.50, each with n=400.…
A: given data, hypothesis:H0:p=0.50Ha:P≠0.50n=400x=219researcer:Ap^=0.5475researcer:Bp^=0.5525test…
Q: Find the value of “z sub alpha” z0.15 And for z0.02
A: The z0.15 denotes the z score for the area of 0.15 to the right of it.
Q: You sampled 13 people and got their pre-diet weight and post-diet weight. If α=.05α=.05, the test…
A:
Q: If beta is equal to 0.4165, then the power of the test would
A: It is given that Beta, β = 0.4165
Q: a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses…
A: Note: According to bartleby experts question answers guidelines an expert can solve only first three…
Q: With Ha : H 162 - 3.184. Find the p- you obtain a test statistic of z = value accurate to 4 decimal…
A: Given, Alternative hypothesis is, Test statistic: z = -3.184 The objective is to find…
Q: Consider the following computer output: Test of mu = 90 vs > 90 Variable N Mean StDev SE Mean x 20…
A: t-test: If the given sample size is less than or equal to 30 then that is a small sample test.…
Q: Do a complete analysis by performing the following steps: State the hypotheses and identify the…
A:
Q: Which combination would lead you to Reject H0? α = .05 p-value = .059 α = .01 p-value = .045 α =…
A:
Q: A developmental psychologist believes that children’s self-esteem scores change with age. She…
A: Assume, μd be the true mean difference between the children's self-esteem score in 6th grade and in…
Q: Use SPSS to run the analysis described in Question 6. What is the obtained t-statistic? Enter the…
A: Given: The output of the SPSS for the hypothesis testing
Q: According to a report from the United States Environmental Protection Agency, burning one gallon of…
A: Given that According to a report from the united states Environmental protection Agency, Burning one…
Q: In a study, a random sample of community college students was asked whether they bought fast food at…
A: The chi-square test was introduced by Karl Pearson for categorical data analysis and distribution.…
Q: Your claim results in the following alternative hypothesis: Ha : p > 38% which you test at a…
A: Given: The alternative hypothesis: Ha : p > 38%. The significance level of α=0.10.
Q: In a survey by Bea et al., it was found that 218 of 1,062 urban residents had a history of allergic…
A: From the provided information,
Q: Which combination would lead you to Fail to Reject H0?
A: Decision rule is that the null hypothesis is rejected if the p-value is less than given level of…
Q: The difference in the observed neurological disease rate, xbar, for a sample of veterans who served…
A: Given: The difference in the observed disease rate for a sample of veterans in Iraq is not…
Q: Cohen's d score of 1.2 is considered to be: Small Negligible Medium Large
A: Cohen's d score=1.2
Q: 1.56 Longleaf pine trees, The Wade Tract in Thomas County, Georgia, is an old-growth forest of…
A: Data in Ascending order :…
Q: In order to meet air pollution standards, the mean emission level for engines of a certain type must…
A: The question is based on a formulation of null and alt. hypo. Given claimed statement : The mean…
Q: If after performing a t-test for comparison of means (alpha= .05) we obtain p=0.0256, what is our…
A:
Q: A group of school districts meet with your data analysis team to help make a case to double the…
A: To achieve the goal of treating the project as a data storytelling project and make a case to double…
Q: The following table shows the weights (in pounds) and the number of hours slept in a day by a…
A: Given The null and alternative hypothesis H0 : M=0 Ha : M ≠ 0
Q: I regress Y on X and get the following information. Standard errors are in parentheses. Calculate…
A: The objective is to find the t-statistic on the y-intercept and on the coefficient.
Q: Traumatic Brain Injuries have been shown to affect brain volume. A psychologist measures the brain…
A: Assume, μd be the true mean difference between the brain size of patients after 2 months and after…
Q: Recall that the cigarette industry requires that models in cigarette ads must appear to be at least…
A: When p value < level of signicance=α, then we reject the null hypothesis other wise fail to…
Your claim results in the following alternative hypothesis:
Ha : μ < 152, which you test at a significance level of α=.001.
Find the critical value, to three decimal places.
zα = ____
Step by step
Solved in 3 steps with 1 images
- You sampled 13 people and got their pre-diet weight and post-diet weight.If α=.05α=.05, the test statistic needs to be less than ___ to show significant weight loss? Give your answer to two decimal places.Thank you for the help!In a population with o = 6, a score of X = 48 corresponds to z = 1.25. The mean for this population is u =
- CONSIDER that the data is UNCORRELATED use alpha .05. Provide the following: 1. CI of the F value 2. Statistical InterpretationA diet center wanted to test three different methods for losing weight to determine if the average weight loss (reported in pounds/week) for each method is the same. The results for the three methods are tabulated below. Given that there is a significant difference between the three methods, use the Tukey test to determine if there is a significant difference between each pair of methods. Let a=0.05. (picture attached)The Consumer Reports customer satisfaction survey is based upon 148,599 visits to full service restaurant chains. Assume this data set is representative of the results reported. The variable restaurant “type” indicates whether the restaurant is an Italian restaurant or a seafood/steakhouse. Price indicates the average amount a person paid for dinner and drinks minus the tip. Score reflects overall customer satisfaction and a score of 80 can be interpreted as very satisfied. Assume alpha = 0.05 for all parts of this question. First, develop a dummy variable to indicate the restaurant’s “type”. Use a dummy variable code of ‘0’ to indicate an Italian restaurant and a ‘1’ to indicate a seafood/steakhouse. Develop a regression equation predicting the customer satisfaction score based upon both price and restaurant type. What is the predicted satisfaction score for an Italian restaurant when average meal price spent is $20? Which restaurant comes "closest" to being an "outlier" in a…
- Is it possible to get the following from a set of experimental data: (a) r23=08 r13 =-05, r12=0-6 (b) r23=07, r13=-04, r12=06A study was done to look at the relationship between number of lovers college students have had in their lifetimes and their GPAs. The results of the survey are shown below. Lovers 0 3 1 2 5 1 8 GPA 3.3 2.9 3.4 3.3 2.5 2.8 0.7 1. The p-value is: _____ (Round to four decimal places) 2. Use a level of significance of α=0.05 to state the conclusion of the hypothesis test in the context of the study (pick one). a. There is statistically significant evidence to conclude that there is a correlation between the number of lovers students have had in their lifetimes and their GPA. Thus, the regression line is useful. b. There is statistically significant evidence to conclude that a student who has had more lovers will have a lower GPA than a student who has had fewer lovers. c. There is statistically insignificant evidence to conclude that a student who has had more lovers will have a lower GPA than a student who has had fewer lovers. d. There is statistically insignificant…For a population with u=90 and o=20, a score of x=105 would correspond to a z-score of
- Assume df = 13 and alpha = 0.05. If Pearson's r = 0.510, then the null _____ and the relationship between the variables is _____ . a. should be rejected; significant b. should be rejected; not significant c. should not be rejected; significant d. should not be rejected; not significantA student is interested in knowing if there is a relationship between the age of a child and the amount of time spent on homework. He asks 7 people their ages and the number of hours they spend on homework. Is there a relationship between age and the amount of time spent doing homework? Test at α = .05 level of significance. Age of Child (yrs) Time doing HW (hrs) 11 5 15 7 4 0 7 1 9 2 5 0 13 3Ten observations were provided for a dependent variable y and two independent variables x1 and x2; for these data,