95% of confidence interval of a population proportion is (0.64,0.84) What is the margin of error. Round to two decimals

Q: A population of values has a normal distribution with = 243.3 and = 93.4. If a random sample of size…

A: Mean(μ)=243.3 standard deviation(σ)=93.4 sample size(n)=22

Q: 1. Nielsen Media Research conducted a study of household television viewing time during the 7PM to…

A: Sample size n=100 Sample mean x¯=705 Population standard deviation σ=85 Confidence level is 95%…

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A: It is already calculated Z statistic score =1.78 z=x-μσn=108-10045100=1.78

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A:

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A: There is no evidence to conclude that the mean number of hours spent watching TV per week is less…

Q: 6.15 Browsing on the mobile device: A 2012 survey of 2,254 American adults indicates that 17% of…

A: n=2254, p^=0.17 , p=0.38

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A: Month Observed Frequency, Oi January 98 February 103 March 114 April 92 May 106 June 106…

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A: The data given for the results is listed below Subject Area Percent of Books on Subject in…

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A: From the provided information,   Sample 1 Sample 2 Sample size 37 37 Mean 0.79185 0.81598…

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Q: What is the correct interpretation of the above confidence interval?

A: Let p1 and p2 be the population proportion of adults that text while driving and the proportion of…

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A: From Minitab output: Variable N Mean StDev SE Mean 95% CI T P RATIO 416 0.3269 0.2915 0.0143…

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A: Males Females n=6 n=9 M=31 M=45 SS=490 SS=680 Standard deviation is given by the formula:…

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A: Matt thinks that he has a special relationship with the number 2, in particular, Matt thinks that he…

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A: Answer: From the given data, The area to the left of Z is 0.85 mean ( μ) =0 Standard deviation (σ) =…

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A: Here, standard deviation of Abe is 50 and standard deviation of Betty is 80.  Both have same number…

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A: A survey of 1080 employees found that 35% of them would lay off their bosses if they could. Sample…

Q: table for various years. Year 1988 1992 1996 2000 2005 2007 Number of Polio Cases (thousands) 350…

A: Year Number of Polio Cases  1988 350 1992 138 1996 30 2000 4 2005 3.2 2007 1.3 Let ft…

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A: Here use deforestation of correlation coefficient . Correlation coefficient between independent and…

Q: Using an a = 0.05, a confidence interval for a population proportion is determined to be 0.65 to…

A: Answer: Given that, At a significance level α = 0.05, The confidence interval for a population…

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Q: Find the area to the left of z = 1.03 Z follows standard normal distribution

A: Answer: From the given data, mean (μ) = 0 Standard deviation(σ) = 1 X~Normal distribution(μ,σ)

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A: Given equations used and tested are:- logY = a + b(logX) + e logY = a + b(logX1) + c(logX2) + e

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A: The specified regression line is:  Y^=6.38+5.84X        2.9    2.2 From the above, the standard…

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A: From the provided information, The data values are as follow: 161 266 351 105 266 171…

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A: (what type of experiment is in given question) This experiment  is a Solomon four-group design…

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A: For a), we are trying to determine whether the MHO met his objective of covering 80% of the target…

Q: Using a standard normal table or excel function Find P(0.67<Z<1.08) Round to four decimals

A: Answer: Using the given data, We have to calculate the probability that, P(0.67&lt;Z&lt;1.08)

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A: (a) From the given information, given the level of significance is 0.01.   Thus, the level of…

Q: The average birth weight of the 25 infants born in Hospital A last month was 7.5 lbs, while the…

A: Answer: From the given data, Average birth weight of 25 infants born in hospital A = 7.5 lbs…

Q: - Under a suitable null hypothesis, the expected frequency for the cell corresponding to fatal type…

A: Row total of yes = 137  Column total small = 223  Total = 374

Q: QUESTION 3 A researcher surveyed 100 adults, measuring their depression and ease-of-access to…

A: Question 3: Sample size n=100 The correlation between depression and ease of access to healthcare is…

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Q: x y Use exponential regression to find an exponential functio that best fits this data. f(x) = 785…

A: x y 1 785 2 834 3 811 4 853 5 812 6 804

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A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15) The area to…

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A: L(p|x,n) = (n choose x) * p^x * (1-p)^(n-x) where p is the probability of success, x is the number…

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A: Answer: From the given data, mean (μ) = 515 Standard deviation(σ) = 37 X~ Norma distribution(μ,σ)

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A: Let μ be the population mean average mileage driven. Given that, Population mean (μ) = 13.5…

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A: Answer: From the given data, Let X: standardized math test's scores Her, X is normally distributed…

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A: As per the Bartelby guidelines only three sub-parts can be answered. Kindly resubmit the question…

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A: The correlation shows the degree of strength between the two numerical variables. It shows the…

Q: A19 A random sample of n = 16 observations has sample mean = 0.60 and sample variance 2=1.44. Is the…

A: Sample size, n=16 Sample mean, x¯=0.60 Sample variance, s2=1.44 α=0.05

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Q: Suppose that the duration of a particular type of criminal trial is known to be normally distributed…

A: Given :  Normally distributed criminal trial  Mean = 19days  Standard deviation = 6 days  Excel…