If 15% of adults in a certain country work from home, what is the probability that fewer than 60 out of a random sample of 500 adults will work from home? (Round your answer to 3 decimal places

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A: For the given data Perform t test for one population mean

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Q: out the effects of increasing the length of advertisements from 30 seconds to one minutes conducts a…

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A: Given that mean =1.85,s.d =1.02,n=55,x bar =1.88

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A: here given there are total 25 people and total 8 prize are there  here use counting Principle

Q: Economics A USA Today/CNN/Gallup survey of 363 working parents found 204 who said they spend too…

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Q: 2.    A past study claims that adults in America spend an average of 17 hours a week on leisure…

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Q: 20 23 36 16 47 22 22 34 14 27 23 20 45 27 9. 24 39 23 91 22 42 12 84 18 46 18 45 22 90 13 54 22 45…

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Q: The average new car price is $35000 with a standard deviation of $1150Consider a random sample of…

A: The question is based on Chebyshev's rule Given : The average new car price ( μ ) = $35000 The std.…

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Q: Identify what is asked. Show your complete solutions and interpret the results on a separate sheet…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. The following table shows the average monthly production of coal in tonnes for the year…

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Q: A laboratory tested n = 82 chicken eggs and found that the mean amount of cholesterol was x = 228…

A: From the provided information, Sample size (n) = 82 Sample mean (x̄) = 228 Standard deviation (σ) =…

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A: Index number- Index number is a number designed to measure the average change in the values of…

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Q: For item d, use the decision below as your reference. The null hypothesis was not rejected, and it…

A: The following information has been given: Null Hypothesis : there is no impact of organic food on…

Q: Suppose that the heights of adult women in the United States are normally distributed with a mean of…

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Q: Question 4 Men's heights are normally distributed with a mean of 69.0 inches and a standard…

A: Given that For women Mean = 63.6 ,s.d =2.5 For men mean = 69,s.d =2.8

Q: table below. Is there compelling statistical evidence that the mean resting pulse rate of people who…

A: Given Data : For Sample 1 x̄1 = 75 s1 = 9 n1 = 16 For Sample 2 x̄2 = 69…

Q: Consider the two following sample data sets. Notice that each observation in Data Set 2 is 10 more…

A: For data set 1 For dataset 2

Q: A manufacturer of office machines is considering the production of a new word processor. The…

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Q: Find the point estimate of the population parameter  and the standard deviation for each of the…

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Q: . In how many ways can the prize be awarded assuming no one gets more than one prize?

A: here we will use permutation

Q: 1. Multiple Choice: Write the letter of your anwer on the blank provided. A random sample of 111…

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Q: SAT Math scores are normally distributed with a mean of 500 and standard deviation of 100. A student…

A: The question is based on a confidence int. for a popl. mean Given : The mean of SAT math score ( μ )…

Q: (a) What is the level of significance? State the null and alternate hypotheses. Ho: My Hz (b) What…

A: For the given data Perform z test two population means

Q: Determine the type of kurtosis of the given sets of score in 10 quizzes of two students.Graph the…

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Q: The data in photo attached show the number of births per 1000 population in samples taken…

A: Considering the African countries, we need to test the hypothesis that the standard deviation of the…

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A: a) Using the given data take the values of 1 to 25 from x axis , values of 1 to 20 on y-axis and…

Q: Systolic Blood Pressure (SBP) of 13 workers follows normal distribution with standard deviation 10.…

A: formula of confidence interval has used.

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Q: Drug. Conc. Resp. Time. 0.5 1 1 1 1.5 1 2 1 2.5 1.5 3 3.5 2 4 2 4.5 2.5 5 4

A: Solution: As per the guidelines first three sub parts should be answered. If the remaining parts…

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A: For the given data Perform chi square test

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Q: Given a random process X(t)= A cos at, where @, is a constant and A is uniformly distributed with…

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Q: 12. What is the probability that the meantime to commute is faster than 20 minutes: A. 0.08% В. 8%…

A: Given that mean = 24,s.d=8,n=40

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

Q: Examine the output and discuss whether there is a statistically significant relationship between the…

A: Given the results of a chi- square test.  We have to examine the output and discuss whether there is…

Q: Consider the following data for a normal distribution: n = 68 x̅ = 75 σ = 8 Calculate the 99%…

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Q: 3. A study was conducted to compare automobile gasoline mileage for three formulations of gasoline.…

A: Introduction: We need to perform two tests- one to check if the mean mileage per gallon differs for…

Q: Let x be a random variable that represents the pH of arterial plasma (i.e., acidity of the blood).…

A: a.   Consider that μ is the population mean pH level of the blood.

Q: cturer of matches claims that boxes contain, on average, 49 matches. ra substantial period, the…

A: *Answer: