A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.6% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.)

Q: 券 2) Solve the inequality-3 + 3x <x+7. .

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Hey, wondering if I could get some help with this problem?

A: The expectation of a continuous random variable X is given by EX=∫-∞∞xfxdx. Where,fx is the…

Q: Can you make your answer more clearer

A: The answer given by the expert is very clear.If there is any specific query/confusion,that may be…

Q: 2. 5, 15, 20.

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Q: How do you solve this problem?

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Q: can you do the next part

A: The set of vector  and We have to express the vector  in terms of the given set of vector

Q: okay can you also do part b now.

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Q: How do I answer this ? I have to show my work.

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: I need help solving these

A: From the provided information, The total male students = 776,281 Total students who received degrees…

Q: Let f be the exponential function defined by (2+2) f(2) = () and determine the folloving information…

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Q: How do you understand things like this 32? It really confusing to me.

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Q: Can you perform parts iii and iv in R please?

A: Using the previously submitted solution,sample mean = 14.81569sample standard deviation =…

Q: Will you show me step by step how to answer this, please?

A: Expected value:The expected value of a random variable is the sum of the possible values that the…

Q: Can you teach people a simpler way to do this?

A: Here, I have taken marked price as $100.

Q: A company institutes an exercise break for its workers to see the effect on job satisfaction, as…

A: Consider that µd is the true mean difference of worker job satisfaction after the implementation of…

Q: 21) In a triangle, the measure of the middle angle is triple the measure of the smallest angle, and…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other question as…

Q: Could you further explain how you got this?

A: Given data :  n = 4 u = 35000 o = 5000 P(x &gt; 40000) = ?

Q: e question 3-8 please, show all of your work, thank you.

A: Given data:   California New York Texas Total Interested 84 76 (a) (c) Not Interested 189 213…