Q3: A researcher wanted to study the difference between the average achievement of male students and the average achievement of female students in the mathematics test. He chose the samples randomly (a sample of males and a sample of females, and each sample is not less than 30   Test the existence of a significant difference between the sexes in mathematics at the level of 0.05

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A: Given that Sample sizes n1=93   , n2=84 Degree of freedom =df = n1 + n2 - 2

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Q: 2. What should you do if the p-value is low?

A: We know that, a P-value is a statistical measurement used to validate a hypothesis against observed…

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Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Solution-: Given:  n1=150,n2=110,p1^=0.10,p2^=0.45 We find P¯=?

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A: The mean formula is, Mean = Sum of all observations/ Total observations, Given: Mean (M) = 12 Total…

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Q: What is the​ p-value?

A: Here sample size is too large so use z test for proportion

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A: We have to find p value for given testing.

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A: Given :  n = 900 p^ = 0.48  p = 0.51

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Q: what does it mean to have a z-score between -1 and 1? Does that include decimals like 0.341 and…

A: A standard Z-score describes the number of standard deviations above or below the mean.

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A: The null and alternate hypothesis are H0 : μd=0HA : μd<0 where, μd is the difference of the first…

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Q: Never Married People The percentage of males 18 years and older who have never married is 30.4. For…

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A: Given: p^=0.88n=50p0=0.91

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A: RESEARCH HYPOTHESIS: A research hypothesis is a statement of expectation or prediction that will be…

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A: From the provided information, p1=0.304p2=0.236n1=250n2=200x1=73x2=50α=0.05

Q: A sample of n = 4 scores has a mean of M = 8. If one new score with a value of X = 3 is added to the…

A: Given,No. of observations (n) = 4and mean (M) - 8we know that,Mean (M) = ∑Xii=1nn

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