QUESTION 6 A researcher believes that 25% of U.S. adult workers are satisfied with their jobs. To test this he collects job satisfaction data from 410 workers, finding that 123 of those workers are satisfied with their jobs. Based on his findings, is the proportion of those who are satisfied statistically different from 25%? O yes, because the p value is >.05 O yes, because the p value <.05 O no because the p value <.05 O no because the p value is >.05

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A: We know that the value of probability is lies between 0 and 1. Outside of this interval are not prob...

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A: Given data, X Y X*Y X*X 45 37 1665 2025 48 39 1872 2304 64 56 3584 4096 76 68 5168 5776

Q: Determine the value of z* such that it satisfies the conditions below. (Round your answer to two dec...

A: determine the value of z* such that it satisfies the conditions given in ( a)(b)(c) and ( d)  

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Q: Suppose X = (X1, X2, . .. , Xk) ~ Multinomial(n, p) , with p = (p1, P2, ..., Pk), prove that Cov(X;,...

A: Introduction :-  Given that X is a vector of random variable and it follows Multinomial(n,p) Where p...

Q: Use the data to the right to complete parts (a) through (d) below. Percentage Who Won't Try Don't Ap...

A: Given that; A data set is here  By using the formula of correlation coefficient (r)and regression co...

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Q: i. What is the value of the degree of freedom for this test?  ii. What is the p-value for this test?...

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A: From the provided information, Mean (µ) = 71 mm Hg Standard deviation (σ) = 8.8 mm Hg X~N (71, 8.8)

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Q: .8. Calculate B, and B, for the following data : X: 1 2 3. 4 6 8. F: 10 15 20 25 20 15 10

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Q: For each of the following, list the sample space and tell whether you think the events are equally l...

A: Given,Roll two dice.

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Q: Failing to reject Ho does not necessarily mean that there is a high probability that H, is true. It ...

A: We have given that,  Failing to reject H0 does not necessarily mean that there is a high probability...

Q: Find what is asked. 1. Find the area under the standard normal curve that lies to the left of: z = -...

A: As per our guidelines we are suppose to answeer only three subparts1)a)GivenThe area under the stand...

Q: mean of x = 2.882, standard deviation = 1.634  Mean of y = 2.588, standard deviation = 0.246 The c...

A: Given that  mean of x = 2.882, standard deviation = 1.634    Mean of y = 2.588, standard deviation =...

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Q: In a group of 800 students, the number of married is 320. But of 240 students who failed, 96 belonge...

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A: Given,Total no.of different toppings=12

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Q: Evaluate each expression. Show your solution. 4. P (6, 6) = 5. P (7, r) = 840 6. 13! =

A: 4)GivenP(6,6)=

Q: what should be Mark's conclusion at 4% level of significance?

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A: We have given that.   X~N( μ , ?^2 )   μ=61500 , ?=6500 , n=33   Z-score =( x - μ )/?

Q: (d) P(X > 7) = i (e) Determinex such that P(X < x) = 0.99. X = i

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Q: You are interested in testing whether the average age of household heads is higher in the suburbs th...

A: From the provided information,

Q: mean of x = 2.882, standard deviation = 1.634 Mean of y = 2.588, standard deviation = 0.246 ...

A:   Regression Equation =     = a + b * x Where b be the slope of the line      a is the y...

Q: A recent Gallup poll asked a random sample of 1010 Americans to respond to the statement, "If the U....

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A: Given the data as Percent Effectiveness Group 1 Group 2 Drug 1 75 58 68 56 71 61 75 60 ...

Q: Example 4. Construct a sampling distribution of the sample mean for the following pulation when rand...

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Q: Find Karl Pearson's coefficient of correlation from the following data between height of father (x) ...

A: Solution: Data is:  

Q: / llustration 13.2. Construct index number of prices from the following data using (a) Laspeyre's (b...

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Q: If Ho is false, the true or actual mean is equal the hypothesized mean, µ = µo O True O False

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Q: The mean annual cost of automobile insurance is $939. Assume that the standard deviation is = $245. ...

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Q: 10. Mingming, Mark's cat, recently got pregnant and is expecting 6 cubs according on her doctor. Mar...

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A: Given: Hypothesized mean = 3 R=-∞,-2∪2,∞ Graph:

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Q: 6. A measles outbreak has occurred in Barangay Onik. The head doctor in the barangay plans to conduc...

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Q: A certain production process produces items that are 10% defective. Each item is inspected before su...

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