A sample showed a sample mean 35 with a sample standard deviation 5. Which of the following is a valid 95% confidence interval for the population? [31,37] O (32,38] [30,35) [35,45] In regards of the previous sample, what statistic would you use to calculate the interval? What Excel function would you use? I should use T, which is obtained with the Excel function TINV OI should use Z, which is obtained with the Excel function NORMSDIST I should use Z, which is obtained with the Excel function NORMSINV I should use T, which is obtained with the Excel function TDIST

Q: A. Ho: H1 = 42 O B. Ho: H1 = H2 H1: H1> H2 OC. Ho: H1 <H2 O D. Ho: H1 H2 H1: H1 <H2 he test…

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Q: The heights of 8 Japanese men were taken with sample mean of 155 cm (centimeters) and standard…

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Q: What is the test statistic t ?

A: Here, the sample size n is 237.

Q: Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of…

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Q: A test was made of H0 "1=2 versu : "1 <H2 The sample means H = 16 and x, = 7, the sample standard…

A: From the given information, n1=17 n2=18 Formula for degrees of freedom is, df=n1+n2-2

Q: The average measured verbal IQ (IQV) scores of children is 100.  In a sample of 20 children, the…

A: Population mean (µ) = 100Standard deviations (σ) = 18.5Sample size (n) = 20Sample mean (x̅) =…

Q: Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain…

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Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Given:population standard deviation (σ) = 5 inches.samples size n = 8The heights of 8 randomly…

Q: Type of test H, 2 df Ho In Illinois, a random sample of 85 eighth grade students has a mean score of…

A: Given: n = 85 df = n-1 = 84 α = 0.04 α2 = 0.02 μo = 260 Formula Used: t = X-μSn

Q: The lengths of time​ (in years) it took a random sample of 32 former smokers to quit smoking…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A random sample of 46 adult coyotes in a region of northern Minnesota showed the average age to be x…

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Q: A pilot study of a new antihypertensive agent is performed for the purpose of planning a larger…

A: a)To calculate the sample size needed to have a 90% chance of detecting a significant change in DBP…

Q: Q2.1 Conditions In a clinical setting it may be prudent to take the blood pressure of cats. Suppose…

A: Q2.1 Conditions:To calculate the estimate of the mean systolic blood pressure of all house cats at…

Q: am computed a 95% confidence interval for mean from a specific random sample. His confidence…

A: By the definition of confidence interval, it is a range of values which might or might not contain…

Q: The mean change in muscle thickness observed after a 4-week training regimen was 4 mm, and the 95%…

A: The 95% confidence interval is (-0.5, 8.5).

Q: A statistics teacher taught a large introductory statistics class, with 500 students having enrolled…

A: The given claim is that the smaller class was more effective and the students perfume better than…

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.