Experience has shown that 15% of municipal rates bills contain an estimated amount for electricity usage. We randomly select a sample of 75 rates bills. A- Compute the standard error. B- What is the probability that less than 14% of the bills in the sample will contain an estimated amount for electricity usage? Interpret your answer.

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Q: (b) What is the probability that a sampled woman has fewer than three children? Round your answer to…

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Q: The table below shows the predicted testing outcome for a disease that affects 2% of a population,…

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Q: In general, a college student's weekly spending is µ = $100 and o = 15. This distribution is normal.…

A:

Q: Forty percent of students at small colleges have brought their own personal computers to campus. A…

A: Given data: P = 0.40 Sample size (n) = 120

Q: In Exercise, express the indicated degree of likelihood as a probability value between 0 and I.…

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Q: What is the probability a randomly chosen person Favors the smoking ban? Round to the nearest whole…

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Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: From the provided information, The table can be constructed as:   Uses social media and other…

Q: According to a 2009 Reader's Digest article, people throw away approximately 12% of what they buy at…

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Q: How many times did the ride run during that hour?  What was the highest rider count?  What was the…

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Q: According to a 2009 Reader's Digest article, people throw away about 7% of what they buy at the…

A: Population proportion (p) = 7% = 0.07 Sample size (n)= 188 Then,  We will find the  Pr( p̂ ≤ 0.13 or…

Q: Do you know Squidward? According to a survey by Nickelodeon TV, 87% of children under 13 in Germany…

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Q: A health instructor surveyed all his students, and tallied the results. The first survey questior…

A: The total number of students is 1+6+5+6=18.

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A: 0 0.08 0 0 0 1 0.37 0.37 1 0.37 2 0.28 0.56 4 1.12 3 0.16 0.48 9 1.44 4 0.09 0.36 16 1.44…

Q: Fifty-five percent of the applications received for a particular credit card are accepted. Among the…

A: Thanks for giving opportunity to serve for bartleby students, Hey, There ! Thank you for posting…

Q: Espaiol It is estimated that, during the past year, 28% of all adults visited a therapist and 43% of…

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Q: An inspection engineer extracts a sample of 15 items at random from a manufacturing process known to…

A: We have given that  X~Binomial ( n , p ) n= 15 , p= 0.85  , q= 1- p = 0.15

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Q: a. What percentage of students scored less than 68? b. What is the probability that a student scored…

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Q: According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at…

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Q: b. What percent of the discharges are between 7.6 ounces and 8.1 ounces? e. If customer buys a cup…

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Q: According to a 2009 Reader's Digest article, people throw away approximately 11% of what they buy at…

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Q: A hotel manager believes that 10% of the hotel rooms are booked. If the manager is accurate, what is…

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Q: A poker hand consists of five cards randomly dealt from a standard deck of 52 cards. The order of…

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Q: h. For parts e-g, what exact number of adults would produce the highest probability? How does this…

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Q: The annual per capita consumption of bottled water was 30.2 gallons. Assume that the per capita…

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Q: Retro control systems are fitted to metal guillotines. The probability that a retro control system…

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Q: What is the shape of most probability distribution? Why do you think so?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.