If p-value in a hypothesis testing is equal to 0.2, it means that the probability of Ho being true is 20%              TRUE     or   FALSE?          2. It is impossible that if we reject Ho by using the p-value approach in a hypothesis test, but we do not reject Ho by using the critical value approach. TRUE        or      FALSE?   3. With the same dataset and hypothesised value, (1 minus p-value in upper tailed test) = (p-value in lower tailed test).TRUE  or         FALSE   4. If the correlation of coefficient (r) is 0.8, it means that the slope of the least squares regression line is 0.8 TRUE       or  FALSE?   5. If1 > 0, then it is certain that β1>0.                              TRUE       or       FALSE?

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A: Given : Claim : An employees have an average salary of $75,000 per year.

Q: 2. Consider the following null and alternative hypothesis. H₂:μ = 120 versus H₂:μ> 120 A random…

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Q: Answer the following true or false. If false, explain why. a. We can reduce α (alpha) by pushing the…

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Q: when we will be reject the NULL HYPOTHESIS on the basis of

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Q: in recent poll of 900 randomly selected high school athletes, 86% said they regularly workout on the…

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Q: An independent-measures research study uses a total of 40 participants to compare two treatment…

A: Given  Total participants =40

Q: 2. From historical data, it is believed that 60% of California voters favored the death penalty. A…

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Q: If we have a sample of size 100 from a population of rope with sample mean breaking strength of 960…

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Q: Antibiotics in Infancy Exercise 2.19 describes a Canadian longitudinal study that examines whether…

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Q: alpha level for

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Q: What is the appropriate null hypothesis for this test? b. What is the sample size for this data? c.…

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A: Given that  Level of significance α=0.08 The critical value for left tailed test.

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Q: :) (a) The use of condoms is generally considered a safeguard against HIV transfer. The data in the…

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Q: If we have a sample of size 100 with sample mean breaking strength of 975 pounds from a population…

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Q: Choosing the alpha level for a hypothesis test allows researchers to control the probability of…

A: I am sorry for your Inconvenience. Please go through the following explanation. In hypothesis tests,…

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Q: a.    If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a…

A: To be reject null hypothesis,  p value must be smaller than alpha.

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.