Two samples of 6 and 5 items, respectively, gave the following data : Mean of tne first sample 40 Standard deviation of the first sample 8 Mean of the second sample 50 Standard deviation of the second sample Is the difference of mean significant ? The value of t for 9 degrees of freedom at 5% level is 2.26. 10

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A: Given: Sample size of males, n1 = 29 Sample size of females, n2 = 16 Standard deviation for males,…

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A:

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A: Mark's in statistics exam = X  Mean of X = 35.8 Standard deviation of X = 23.2

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A: The provided data is: Class interval Frequency Cumulative frequency(cf) 10-20 5 5 20-30 8…

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A: Answer:- The independent t-test implies that the means of the two independent populations are…

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A: In above table  Given 95% CI for difference in mu men - mu women  (-10.67,-1.13)

Q: The mean number of English courses taken in a two-year time period by male and female college…

A: Answer:-

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Q: a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds?…

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Q: A test score of 45 has an equivalent standard score (z-score) of 1.6. If the mean test score is 39,…

A: given dataraw score  x = 45standard score   z = 1.6mean μ = 39S.D.  σ = ?

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A: Here we will conduct a 2 independent sample t-test to test the equality of the average number of…

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Q: mean length of 25 cm. Because of the variability in the manufacturing​ process, the lengths of the…

A: Population mean μ =25 Population standard deviation =0.08

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Q: The mean number of English courses taken in a two-year time period by male and female college…

A: Given: Sample size of males, n1 = 29 Sample size of females, n2 = 16 Standard deviation for males,…

Q: Smelt is a type of flood fish. Smelt lengths are normally distributed with a mean of 15 cm and a…

A: Given: µ = 15 σ = 1

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Q: The mean number of English courses taken in a two-year time period by male and female college…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

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A: Given data,Mean is μ=170.25sd is     σ=8.47

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A: (a) Hypothesis: The correct hypothesis is Option B. H0:μ1=:μ2 H1:μ1<:μ2 (b) P-value: From the…

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A: