Only I need the name no need for explanation The medical board in canada wants to determine if the new corona vaccine reduces the risk of corona in the elderly people above 60 yrs .FOr this study,the elderly people were recruited from 12 areas in toronto,Calgary and monte carlo  and were randomized to receive either the new or the standard vaccine treatment .information was collected 1 yr later  What type of study is this font explain only the correct option Cross section Case controlled cohort Ecological  Experimental study designs

Q: Why would we want to use three separate tests instead of ANOVA?

A: Why would we want to use three separate tests instead of ANOVA?

Q: Our significance level will help control the chance of a type II error. True False

A: Our significance level will help control the chance of a type II error. True False

Q: What happens to the power of a hypothesis test if the sample size is increased without changing the…

A: For a fixed significance level, increasing the sample size increase the power of a hypothesis test.…

Q: archers wanted to determine if language impairment in school wage impairment and 30 sth graders…

A: Experimental study: In these types of studies the researchers introduce an interventions and study…

Q: What does it mean if the cases are not selected randomly but are assigned randomly to groups?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of these sounds like a situation where you would want to use an Independent-Measures ANOVA?…

A: The independent-measures analysis is used in research situations for which there is a separate…

Q: A data collection method is described to investigate a difference in means. Determine which data…

A: In this case, the effect of women’s tears on men are tested.

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Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: a) State hypothesis, find the test statistic, and use any software for the P-value. Be sure to state…

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Q: You conduct a one-way ANOVA with 7 groups (or populations). At 0.01 significance level, you find at…

A: Given:

Q: When calculating effect size is it possible for a very small treatment effect to be a statistically…

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Q: Which of these research designs are used for national surveys? Cohort…

A: Which of these research designs are used for national surveys?

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A: The formula of test statistic is,

Q: If we get a big difference between our sample mean and our population mean, will our test statistic…

A: Given information: The statement is given related to the big difference between x¯ and µ. Formula:…

Q: Describe about STANDARDIZED EFFECT SIZE, COHEN’S d (TWO RELATED SAMPLES)?

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Q: A psychologist at a private mental health facility was asked to determine whether there was a clear…

A: Given: Affective Disorders Cognitive Disorders Drug-related conditions 7 12 8 6 8 10 5 9 12…

Q: Distinguish between Alpha and Beta testing.

A: Let AT denote Alpha Testing. Let BT denote Beta Testing.

Q: Please create different research scenarios that suitable to be analyzed using the following methods:…

A: T-Test :              T-Test are used to test population mean. There are different types…

Q: A researcher wants to study the effects of birth order on personality. Explain why this study could…

A:

Q: Randomization is one of the basic principles of Design of Experiments (DOE). Explain what…

A: Solution-:  Randomization is one of the basic principles of Design of Experiments (DOE). Explain…

Q: What is the difference between a population and a sample? Which is described by a parameter and…

A: Determine the difference between the population and sample.   The difference between the population…

Q: Consider a completely randomized design with four treatments A, B, C, and D, and an unbalanced…

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Q: Design EITHER a randomized comparative experiment OR a matched pairs experiment, ap- propriately…

A: Randomized Comparative Experiment: The experiment treated as randomized comparative experiment if…

Q: Working memory scores of those with anxiety are compared to working memory scores of those without…

A: Factorial design is a statistical model that consists of two or more factors each with different…

Q: Can you employ a large sample 2 sample t test  when n = 50 and ypu have paired data?

A: Paired t test is employed in a dataset when the dataset  are linked to each other.

Q: s the right hand generally stronger than the left hand? Strength is measured by a calibrated…

A: The design in which the subjects under study are assigned completely at random with any of the…

Q: If a hypothesis is true and the difference between the control group and the experimental group is…

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Q: use a sample to draw an inference about a population

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Q: What test would be best to use if there was a statistical difference between brands in an…

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A: Given,the new medical technique and the standard medical technique.To conduct a test of hypothesis,…

Q: Women who are obese suffer social and economic consequences, a new study has shown. They are 20%…

A: We are given one scenario: Women who are obese suffer social and economic consequences, a new study…

Q: When should you use a z-test versus a single sample t-test?

A: We know that- z-test- It is a statistical test used to determine the difference between the two…

Q: The calculations for a factorial experiment involving four levels of factor A, three levels of…

A: Given: The value of SST is 275. The value of SSA is 24. The value of SSB is 21. The value of SSAB is…

Q: Distinguish between a Longitudinal study and Cross-sectional study

A: Difference between longitudinal and cross-sectional study is shown below

Q: A randomized controlled experiment was performed to study the effectiveness of new medication for…

A: Note: Hey there! Thank you for the question. As you have posted multiple questions, we have helped…

Q: Explain the reasons to study randomized controlled experiments?

A:

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: The process through which experimental subjects are assigned to any of the groups (i.e., treatment…