A research report describing the results from a repeated-measures t test states, “t(22) = 3.2, p < .05." From this report you can conclude that the outcome of the hypothesis test was

Q: In 1945​,an organization asked 1502 randomly sampled American​ citizens, "Do you think we can…

A: The hypotheses are given below: Null hypothesis: H0:p=0.50. Alternative hypothesis: H1:p&gt;50.…

Q: You may need to use the appropriate technology to answer this question. A sample of 16 items from…

A:

Q: A market research firm used a sample of individuals to rate the purchase potential of a particular…

A:

Q: A sample of n = 16 high school students took the SAT before and after a special training course. For…

A: Given information d¯=18n=16Sd=SSn-1=600016-1=20

Q: The critical z-value for an 85% two tailed hypothesis test is  a. 0.8023 b. 1.44 c. 1.04 d.…

A: For two tailed test we  use critical z value at α2  Since here α=15% Therefore here  we  calculate…

Q: A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper…

A: A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper…

Q: State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test these…

A: Given, a) Claim: There is an increase in the mean difference between posttest and pretest scores.…

Q: MM

A: We can run a chi-square test to determine an officer's independence based on how many arrests they…

Q: What would you conclude based on an α=0.05 ​level?   We reject   the null hypothesis and do not…

A: From the previous information, it is known that the p-value is  0.9857. And level of significance is…

Q: A randomized double-blind clinical trial for a new drug has a null hypothesis of "There is no…

A: A randomized double-blind clinical trial is done.

Q: I run a between-subjects experiment with two experimental conditions. My analysis returns a p-value…

A: p value is used to make results for hypothesis.

Q: A researcher is interested in the effect type of residence has on the personal happiness of college…

A: Result of Anova: Single factor (Excel):Result of Sceffe's Test:

Q: Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or…

A: Given claimStudents studying from an electronic screen had exam scores that are significantly…

Q: A bank institutes a new procedure for reviewing batches of checks in an attempt to better detect…

A: Some techniques are used to make decisions on hypothesis testing. One such method is the p-value…

Q: Recently, a large academic medical center determined that 6 of 15 employees in a particular position…

A: given data claim : p ≠0.44n = 15x = 6α = 0.05

Q: Supose that the  following text implay that being a little overweight may lead to a longer life ( it…

A: One confounding variable that may compromise the validity of the inference that being a little…

Q: In a clinical trial, 24 out of 840 patients taking a prescription drug daily complained of flulike…

A: The value of np0(1–p0) is obtained below as follows:   From the information, given that…

Q: v. State, in terms of the model parameters, the null hypothesis that the marginal effect of teacher…

A: The model is given as: MATHSCORE=β0+β1SMALL+β2TCHEXPER+β3BOY+β4(BOY*TCHEXPER)+e

Q: A recent article reported “A one-way analysis of variance found that GRE scores varied according to…

A: We have to  fill blankets.

Q: #6.9 Since an instant replay system for tennis was introduced at a major​ tournament, men challenged…

A: Solution: 6.9 Let p1 be the proportion of men has a success in challenging calls and p2 be the…

Q: Suppose the average reading speed of 15 randomly selected elementary school students is 25, and the…

A: Given that, X1 bar = 25 , n1= 15 X2 bar= 31, n2= 15  Calculated t= 5.72  And the result is…

Q: A hospital reported that the normal death rate for patients with extensive burns (more than 40% of…

A: Given information- Sample size, n = 92 Sample proportion is- Hypothesis Formulation-…

Q: You have a one-sided hypothesis test with alpha level 0.05 and p-value of 0.04. Which of the…

A: Given: α=0.05P-Value=0.04

Q: A random sample of 15 families representing three social classes has been observed for the frequency…

A:

Q: 6.16 Is college worth it? Part I. Among a simple random sample of 331 American adults who do not…

A: sample size, n = 331 American adults Point estimate : p^ = 0.48   a) Minority of students means…

Q: An independent samples study uses two samples each with n=8 participants. If the data produce a…

A:

Q: 54% of students entering four-year colleges receive a degree within six years. Is this percent…

A: n=299x=138Population proportion(P)=0.54and

Q: A two-sample t-test for a difference in means was conducted to investigate whether there is a…

A: Given: Test Statistic = 2.201 P-value = 0.027

Q: A professor claimed that a majority (more than 50%) of her students believe in ghosts. To test her…

A: What is the alternative hypothesis for this test? From the given information, Consider, x be random…

Q: Are Republicans more likely than Democrats to display the American flag in front of their residence…

A: Given Information: Republicans: Sample size (n1) = 679 Out of which x1 = 448 displayed the flag on…

Q: A researcher has participants expecting to receive either painful or mild electrical shocks during a…

A: Usually in survival analysis studies we can use both parametric and non-parametric statistics. For…

Q: n a randomized controlled​ trial, insecticide-treated bednets were tested as a way to reduce…

A: Given X1=20 X2=33 N1=345 N2=293

Q: A researcher used a repeated-measures experiment to examine the effectiveness of motivational…

A:

Q: A pharmaceutical manufacturer has come up with a new drug intended to provide greater headache…

A: The hypotheses are given below: The claim is that new formula is better than old. Null hypothesis:…

Q: Suppose a researcher wants to test the effects of 3 different types of goals (no goal, difficult…

A: The given results are F2,47=2.41,p&lt;0.05.

Q: t(23) = 3.20, p = .01.

A: Given, t(23)=3.20 p=0.01

Q: It has been determined that 37 out of 100 adult Americans that did not attend college believe in…

A: There are two independent samples which follows normal distribution. We have to test whether the…

Q: Do the data provide sufficient evidence that the production of mobile phone users who prefer the…

A: Given that Sample size n = 151 Number of mobile phone users who prefer the producer's brand, X = 28…

Q: Microsoft would like to advertise that more than 30% of all its customers have more than two…

A: It is given that Microsoft would like to advertise more than 30% of all its customers who have more…

Q: Researchers examined the relationship between social playtime and emotional intelligence in a sample…

A: From the provided information, The hypotheses can be constructed as: H0: ρ = 0 (There is no…

Q: The test statistic in a two-tailed test is z=−2.61. Determine the​ P-value and decide​ whether, at…

A: Given,Test statistic(z)=-2.61α=0.05and it's a two tailed test

Q: When only two treatments are involved, ANOVA and the Student's t-test (Chapter 11) result in the…

A: 1. Data Setup:Traditional Lecture Scores: [36,31,38,31,31,40]Distance Learning Scores:…

Q: QUESTION 4 An executive believes that no more than 80% of the company's employees take all of their…

A: From the above data  We are given that  P value = 0.0422 Level of significance =0.05

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.