researcher was interested in the mean corn yeild for farmers in Illinois. She took an SRS of 28 farmers from Illinois and survey their corn yeild. The sample mean was 136.25 bushels per acre and the standard deviation was 13.25 bushels per acre assuming the conditions are met how many farmers in Illinois should be sampled in order to get a 95% confidence interval with a margin of error of 3.5?

Q: B). Using the linear correlation coefficient found in the previous step, determine whether there is…

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A: given data, sample proportion p^=0.59 2E=0.3E=0.32=1.5CI=0.99α=1-0.99=0.01we have to find out the…

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A: Method: Using the joint pdf to find the margin pdf of x and y

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Q: work!!!! suppose a 70% confidence interval for P is (0.746, 0.854). Which of the following…

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A:

Q: (d) Calculate the conditional probability P(Y> x =). (e) Calculate the probability P(Y > ¹). (f)…

A:

Q: A smart phone manufacturer is interested in constructing a 99% confidence interval for the…

A: CI=0.99n=1688X=84p^=xn=841688=0.0498CI=0.99α=1-0.99=0.01

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A: To calculate: Five number summary

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A:

Q: and X₂ = 7.7 and that s² = 4 and s Consider the hypothesis test Ho: ₁ = 2 against H₁: M₁ M₂. Suppose…

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A: GivenA single throw of two diceThen Total outcomes=62=36

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A: The general tendency that essentially fails to estimate the true value of the parameter of the…

Q: Consider the hypothesis test Ho: ₁ = 2 against H₁ ₁2 with known standard deviations a₁ = 9 and ₂ =…

A: Given Information: Standard deviations: σ1=9, σ2=5 Sample sizes n1=10, n2=14 Sample means: x¯1=4.5,…

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A: a.) The level of significance is : α=1-0.95  =0.05 The degrees of freedom are df=9.

Q: t would be the estimated y-intercept.

A:

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Q: 1. Assume that women's heights are normally distributed with a mean of 63.6 inches (5'3.6") and a…

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A:

Q: 14. You would like to know how effective a diet program is at helping people lose weight. 18…

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A: Solution: First we find sample mean and standard deviation for the difference score.  Before…

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A: From the given results, it is observed that the scatter plot for the given data is option c.

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A: Given Total number of tasted person=290

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A: The given sample size is 11, sample mean is 118 and sample standard deviation is 9.

Q: This is the question  The age of children in kindergarten on the first day of school is uniformly…

A: Given,A random variable X~U(4.85 , 5.93)f(x)=15.93-4.85   ;  4.85≤X≤5.93f(x)=11.08     ;…

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A: Formula Used: Mean μ = E(X) = ∑X·P(X) Standard deviation σ = EX2-EX2 Where, EX2 = X2·P(X)

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Q: A corporation must appoint a president, chief executive officer (CEO), chief operating officer…

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Q: selor has traditionally seen that the proportion p of all married couples for whom her communication…

A: given data, n=250x=194α=0.10p^=xn=194250=0.776

Q: The following are the ratings of males by females in an experiment involving speed dating. Use the…

A: data in accending order are : 1,1,2,2.5,3,3,3.5,3.5,3.5,3.5,3.5,4,4.5,5.5,5.5,5.5,6,6.5,6.5,7n= 20

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A: given data   p = 0.70 n = 84  P(0.65<p^<0.73) = ?

Q: A data set includes 108 body temperatures of healthy adult humans having a mean of 98.2°F and a…

A: The sample size is 108, sample mean is 98.2 and standard deviation is 0.64.

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