Consider a hypothesis testing situation in which the null hypothesis is p = 0.48 and the alternative is p > 0.48. Data is gathered from a random sample, and calculations yield a value of z = 2.5.  Which one of the following conclusions can be drawn based on this information

Q: A news article that you read stated that 58% of voters prefer the Democratic candidate. You think…

A: Solution: Given data: p= .58 x= 150 n =30 Level of significance = 0.05 To Test the claim:   58% of…

Q: A statistics student believes that black cars are less likely to receive tickets for moving…

A: It is given that the P-value is 0.24.

Q: Consider a hypothesis test of the claim that following a particular diet reduces the likelihood of…

A: Here we consider a hypothesis test of the claim that following a particular diet reduces the…

Q: 4. The P-value for a two-sided test of the null hypothesis Ho: u = 10 is 0.03. Does the 95%…

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Q: A researcher first decided to conduct a two-tailed hypothesis test, with alpha = .05, but then…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Identify the incorrect statement below: The estimator, X_ from a random sample of X A. Is the mean…

A: Assume that the random variable is X.

Q: You draw a sample of size 30 from a normally distributed population with a standard deviation of…

A: Given,sample size(n)=30and 95% confidence interval

Q: What is the p-value if you are doing a two-tailed test?

A: We have given that  The z-statistic is, z = 1.15

Q: 2010, 4036 of voters in a certain state favored stricter gun control laws. In 2019, a researcher…

A: Given that  Population proportion p=0.48 Test statistic z=2.27 P-value =0.0116

Q: Perform the following hypothesis test: HO: µ = 10 H1: µ 10 The sample mean is 9.55, population…

A: Given data: Mean = 10 Sample mean = 9.55 Sample size = 51 Significance level = 5 %

Q: Typical values for alpha generally range from 1% to 10% for hypothesis testing. Select one: O True O…

A: Alpha represents significance level

Q: e test whether "cramming" for an exam is harmful to grades. Group one crams for a pretend exam, but…

A: Given that  Group 1 Group 2 Sample size (n1) = 31 Sample size (n2) = 31 Sample mean (x¯1) =43…

Q: An elementary school claims that the standard deviation in reading scores of its fourth grade…

A: given data,an elementary school claims that the standard deviation in reading scores of its fourth…

Q: 17.    A hypothesis test of ?0: ?1 = ??2 versus ?1: ??1 ≠ ?2 produces a p-value of .057.  Which of…

A: The objective of this question is to determine the correct 95% confidence interval for the…

Q: A research firm carried out a hypothesis test on a population proportion using a​ right-tailed…

A:

Q: It is expected that a treatment will reduce scores on a variable. If a = .05, what is the critical t…

A: Given,sample size(n)=15a=0.05it is a left tailed test because it is given that a treatment will…

Q: We want to compare cholesterol levels between men and women, so we collect a sample of 20 women and…

A: From the provided information,

Q: If you have a hypothesis test with alpha = 0.09, which of the following P-Values does NOT imply…

A: hypothesis test with = 0.09

Q: A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a…

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Q: When one changes the significance level of a hypothesis test from 0.10 to 0.05, which of the…

A: Here as level of significance is probability of type I error and sample should have p value less…

Q: It is claimed that the proportion of high school athletes who go on to play sports in college is…

A: We have given the following interpretation.   A claimed that the proportion of high school athletes…

Q: 5. An hypothesis test is of the form Ho : µ1 – µ2 = 0 vs Ha : µi – µ2 < 0. Both populations are…

A: Here Given  A hypothesis test is of the form H0:μ1-μ2=0,  Vs  Ha: H0:μ1-μ2 &lt;0 We have to state…

Q: Question 8 Of 379 randomly selected medical students 24 said that they planned to work in a rural…

A: Given that  Sample size n =379 Favorable cases x =24

Q: If you have a hypothesis test with alpha = 0.03, which of the following P-Values does NOT imply…

A: Given Hypothesis test with alpha = 0.03,

Q: 8.72 Given M = 88, M2 = 83, ty = 2.042, t = 2.040, and a two-tailed test %3D %3D %3D %3! with a =…

A: Given  M=88, M2=83, tcv= tcritical =2.042 , t=2.04=test statistic Two tailed hypothesis Level of…

Q: Reports say that the mean height of adult males in the US is 69.1 in. May wants to per hypothesis…

A: Given that,  Reports say the mean height of adult male in the US is 69.1 in.And sample mean…

Q: Scenario: Terry Teacher suspects that kindergarten class sizes in Alameda county are larger than…

A:

Q: In general, if sample data are such that the null hypothesis is rejected at the ? = 1% level of…

A: The sample data has rejected the null hypothesis at α=0.01 level of significance for both one tailed…

Q: Test Prep. A GRE prep company clainms that average score improvement of their students is equal to…

A: We have given that  Sample size n =40 Sample mean = 47 Standard deviation = 37

Q: Consider this study and identify the null hypothesis. (Remember: the null hypothesis is what Noel…

A: From the given information,   An Uber driver's average customer rating is a 4.3   Using the given…

Q: you compute a two-sample z statistic and it comes out to equal 1.6. What is the p-value if you are…

A: Given Information: The two-sample z statistic is given as 1.6. The test is two tailed

Q: Two different simple random samples are drawn from two different populations. The first sample…

A: given data : n1 = 40x1  = 20 : n2  = 2200x2 = 1573α = 0.05claim : p1 ≠ p2p^1 = x1n1 = 2040 =…

Q: If Lynell requires her results to be statistically significant at level a = 0.05, choose the correct…

A: Here use given information for test the proportion