9 If 64 out of 320 people received fruit in addition to candy what are the 95% confidence interval values? (0.14825, 0.15175) (0.09063, 0.20937) (0.19902, 0.20098) OOOOOO (0.15617, 0.24383) (0.14863, 0.15137) (0.09638, 0.20362)

Q: The negative z values for 1-tail [a ‘left’ tail] and 2-tail 99% confidence intervals are……

A: Given : confidence level, c = 0.99

Q: You sample 100 people to see if they have been to the grocery store in the past week, and find that…

A: Obtain the 95% confidence interval for the true population proportion. The 95% confidence interval…

Q: The 95% confidence interval for B₁ is the interval: OA. (B₁-1.96SE (B₁). B₁+1.96SE (B₁)). А. OB. (B₁…

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Q: A 95% confidence interval for the mean score of all bowlers based on n = 40 is (131.28, 138.72). The…

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Q: 25.  At a local college, 200 students were asked if they attended orientation. 112 said that they…

A:

Q: Variety magazine recently ask a random sample of readers if Disney Plus was "as good as" Netflix.…

A: The 90% confidence interval is [0.4575, 0.5225]

Q: Suppose the data in the table below was found from a case-control study.  What measure of…

A: Provided data in the table was found from a case-control study. We need to construct the 95%…

Q: Suppose a TA wanted to estimate the proportion of students who failed Stat 119 for the 980 students…

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Q: Out of 400 people sampled, 32 had kids. Based on this, construct a 95% confidence interval for the…

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Q: A 90% confidence interval for the mean proportion of airline reservations being canceled on the day…

A: Solution: From the given information, a 90% confidence interval for the mean proportion of airline…

Q: A group of 8 students were given the same standardized test twice to see whether retaking the test…

A: It is given that .

Q: A surprising number of young adults (ages 19 to 25) still live in their parents’ homes. A random…

A: Given  X1=986, n1=2253, X2=923, n2=2629

Q: Let's say you survey a random sample of 70 people. You ask the people in your survey if they prefer…

A: given data  n = 70 p = 0.53 95% ci for p margin of error (E) = ?

Q: Out of sample of 500 people, 25% exercise daily. What is the confidence interval for the population…

A: Given Information:    n=500  p=0.25 q=1-p=1-0.25=0.75α=0.05

Q: Which of the below Z scores is the appropriate z* when calculating a 98% confidence interval? (a) Z…

A: We hvae to find corrcet answer..

Q: A researcher wanted to check whether the percentage of Canadian adults with obesity has decreased in…

A: Number of Canadian adults in 2005= 75 Number of Canadian adults in 2009 = 120   significance level =…

Q: Is the proportion of all people who went trick or treating who received fruit in addition to candy…

A: based on the calculation in question 9, we can say with 95% confidence that the true proportion of…

Q: Suppose we take a SRS of high school seniors and get a 95% confidence interval that 250 to 278…

A:

Q: Joe’s Pizza Joint found that 64.2% of the 328 pizzas sold last week included pepperoni. Find a98%…

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Q: The First National Bank of Wilson has 620 checking account customers. A recent sample of 70 of these…

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Q: A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval…

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Q: If a sample has has a 94% confidence interval of (4.68,5.43), what is the 2-decimal margin of error?

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A:

Q: в, — 42, s — 8.8, SS,, — 64, п — 19 90% : < B1< 99% : < B1 S

A: Given   beta cap1 =42, s=8.8, SS xx =64 , n = 19

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Q: ted below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The…

A: The given data is  4 2.9 4 4.8 3 4.2 3.8 4.4 4.2 4 4.3 3.9 3.5 4.1…

Q: In a sample of 600 Ottawa families, it is found that 360 rent their dwellings while 240 own their…

A: It is given that sample size (n) is 360 and x is 240.

Q: 90% confidence interval for the mean of airline reservations being canceled on the day of the flight…

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Q: According to a Field Poll, 254 out of 409 of California adults feel that "education and our schools"…

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Q: If 64 out of 320 people received fruit in addition to candy what are the 95% confidence interval…

A:

Q: The second annual Airplane Etiquette Study commissioned by Expedia asked 1000 Americans to rank the…

A: Suppose p is the population proportion of all Americans, who would rank near seat kickers as the…

Q: A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval…

A:

Q: What is the effect on the size of the confidence interval if a T score is used instead of a Z score?…

A: The value of t is larger for smaller sample sizes i.e., lower df. When we use "t" instead of "Z" in…