Of 48 bank costumers depositing a check, 16 received some cashback.   Construct a 90% percent confidence interval for the proportion of all depositors who asked for cashback. (Round your answer to 4 decimal places) The 90% confidence interval is _____ to ______

Q: Suppose​ that​ 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: we have given that sample size =n=2307 ,sample proportion =p^=18%=0.18

Q: 200 students were asked to randomly pick one of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The…

A: Given that  Total number of students =200 Let X denote the number of student pick 7  From n=54…

Q: Out of 100 people sampled, 56 had kids. Based on this, construct a 99% confidence interval for the…

A:

Q: Express the confidence interval (68 % , 79.6 % ) in the form of p + ME.

A: The mid-point of the confidence interval gives the value of p-cap.

Q: A  95% confidence interval for the  proportion of voters who say "they want change" is computed and…

A: From the provided information, Confidence level = 95% Confidence interval for the proportion is…

Q: standard deviation is $17.40.

A: We have given that  Sample size n =55 Sample mean =136 Standard deviation =17.40

Q: xpress the confidence interval (48.1% , 64.7%) in the form of (p-hat) +- ME ______%+-______%.…

A: Given Information: Confidence interval for population proportion p is: (48.1% , 64.7%) = (0.481,…

Q: Out of 400 people sampled, 336 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: n a survey of 3117 ​adults, 1473 say they have started paying bills online in the last year.…

A: Given problem Given that   In a survey of 3117 ​adults, 1473 say they have started paying bills…

Q: A  95% confidence interval for the  proportion of voters who say "they want change" is computed and…

A: For the population proportion, the confidence interval can be computed using the formulae: C.I=p⏞±E…

Q: 24 A jam manufacturer claims that the mean amount of jam in its 5-ounces jars is 5.1 ounces. A…

A:

Q: Manual Transmission Automobiles In a recent year, 6% of cars sold had a manual transmission. A…

A: Given data,         n=123         x=22         P∧=xn=22123=0.179         Point estimate…

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: If n=380 and X = 304, construct a 90% confidence interval. Give your answers to three decimals…

A: Given,n=380 ,x=304p^=xnp^=304380=0.81-p^=1-0.8=0.2α=1-0.90=0.1α2=0.05Z0.05=1.645     (from Z-table)

Q: A random sample of 1700 workers in a particular city found 646 workers who had full health insurance…

A: Given, The sample proportion is, Critical value: Using z-table, the z-critical value at the given…

Q: Find the 95% confidence interval for the proportion of customers planning to buy the shoes, and…

A: Provided data is, Mary was successful and collected 600 responses in time. 195 of the surveyed…

Q: Express the confidence interval 84.7% < p < 91.3 % in the form of p + E. % ± % Note: To do this,…

A: GivenConfidence interval is 84.7%&lt;p&lt;91.3%

Q: A history teacher records the SAT scores of all 87 of her students. The data is used to construct a…

A: For calculating the confidence interval, we need to satisfy the following conditions: Independence…

Q: Educational Television In a random sample of 205 people, 143 said that they watched educational…

A:

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A: Given, The best sample proportion is, Critical value: Using the z-table, the z-critical value for…

Q: In a survey of 2308 ​adults, 718 say they believe in UFOs.   Construct a 95 % confidence interval…

A: Given information- Sample size, n = 2308 We have given that out of 2345 adults 718 says they believe…

Q: In a sample of 120 adults, 106 had children. Construct a 99% confidence interval for the true…

A: We have given that,  Favorable cases (X) = 106 and sample size     (n) = 120 Then,  We will find the…

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: It is given that, the number of caterpillars lived to become butterflies (x) is 43 and the sample…

Q: sted in constructing a 98% confidence interval for the proportion of samples of DNA evidence that…

A: Given, c=98% p^=xn=9651000=0.965 α=0.02

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Out of 300 people sampled, 42 had kids. Based on this, construct a 95% confidence interval for the…

A: Given: n = 300  X = 42  Confidence level = 95% Formula Used: Confidence Interval = p ± Z*p(1-p)n

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A: Confidence intervals is an inference process which can be used to estimate the population parameter.…

Q: Express the confidence interval (45.7 % , 59.5 % ) in the form of p + ME.

A: From the provided information, Confidence interval is (45.7%, 59.5%)

Q: In a sample of 320 adults, 288 had children. Construct a 95% confidence interval for the true…

A: Here, the number of adults had children, x is 288 and the sample size, n  is 320. The known values…

Q: In a survey of 400 UAE residents, 72 said they trust cryptocurrencies. Find the Lower Confidence…

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Q: In a survey of 2009 adults in a recent year, 1263 say they have made a New Year's resolution.…

A:

Q: Construct the 90% confidence interval for the difference p1-p2 when x1=45, n1=85, x2=20, and n2=65.…

A: Given Information: x1=45n1=85x2=20n2=65c=90%=0.90

Q: In a survey of 2285 adults, 734 say they believe in UFOS. Construct a 95% confidence interval for…

A:

Q: In a survey of 2268 adults, 720 say they believe in UFOs. Construct a 90% confidence interval for…

A: Suppose p is the true population proportion adults who believe in UFOs.

Q: In a survey of 2336 adults, 735 say they believe in UFOS. Construct a 90% confidence interval for…

A: Given that,In a survey of 2336 adults, 735 say they believe in UFOs.

Q: Which of the following would result in the narrowest confidence interval? A sample size of 30 with…

A: Here we will use the concept of confidence interval  and using the formula of confidence interval we…

Q: In a survey of 2319 ​adults, 704 say they believe in UFOs.   Construct a 90% confidence interval for…

A:

Q: Of 41 customers depositing a check, 20 received some cash.  a. Construct a 90 percent confidence…

A: Given,n=41x=20p^=xnp^=2041=0.48781-p^=1-0.4878=0.5122α=1-0.90=0.1α2=0.05Z0.05=1.645   (from Z-table)

Q: Find the width of each interval by subtracting the lower proportion from the upper​ proportion, and…

A: First we will calculate 95% confidence interval We have given thatn = 2029x = 645p̂ = x/n = 645/2029…

Q: Out of 200 people sampled, 122 had kids. Based on this, construct a 90% confidence interval for the…

A: Given that, n = 200 x = 122

Q: Suppose that 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: The sample proportion is given as 0.18. The sample size is given as 2307. The two-tailed z-critical…

Q: A 99% confidence interval for the mean population height of male college freshman is calculated from…

A: Consider the equation

Q: Find the 90% confidence interval of the true proportion of people who watched educational…

A:

Q: In a survey of 2318 adults, 747 say they believe in UFOs. Construct a 99% confidence interval for…

A: The 90% confidence interval for the population proportion is between (0.297,…

Q: Out of 300 people sampled, 150 voted in the last election. Based on this, construct a 99% confidence…

A: The best point estimate of the population proportion is the sample proportion. It was found that out…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.