Construct a 90% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to construct this interval? x=85 o=14 n = 14

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A: The provided information is as follows:The proportion that News Network 1 poll predicted they were…

Q: Here is a data set that has a nearly normal distribution. data data data data 50.71 47.54 52.61…

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Q: Identify any outliers. Select the correct choice below and, if necessary, fill in the answer box to…

A: we take the given data in ascending orderHence the Here we can say  is appears to be outlier or it…

Q: highest temperature each day during the summer. The data are plo (°F), as the explanatory variable…

A: The least squares regression line for the data isY^ = -114. 05+2.17XIt is given that on one of the…

Q: past campaigns sume the independence assumption is met P=005 P0.05 OB H₂ p>0.05 H₁ P=0.05 CE H₂…

A: The true proportion (p) = 0.05sample size(n)=1,00,000x=4973sample proportion p^ =x/n…

Q: A biologist wonders if the life span of bats will be affected by two new food sources from invasive…

A: By the given problem, we can conclude  that,Things Biologist done correctly are● The biologist did…

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A: In this question, we are tasked with calculating the item discrimination index (d) for BRS Item 3,…

Q: Based on the Histogram, describe the distribution of the variable "WPM." Is it symmetric, skewed…

A: Based on Histogram it seems that :It is skewed right and bimodal.

Q: Consider the following cumulative frequency distribution: Cumulative Frequency 70 110 Interval 25 15…

A: Given that Cumulative frequency distributionInterval cumulative frequency…

Q: Educational experience is recorded as 1 = elementary school, 2 = high school graduate, 3 = some…

A: Suppose the Educational experience is recorded as:,,, and

Q: 26. Two scores, X and Y, are recorded for each of n = 5 For these scores, find the value of each…

A: The data are Participants XYA31B15C-22D-42E24

Q: The graph below shows the sales ogive for a company. Sales Ogive 200 180 160 140 120 100 80 60 40 20…

A: From the given Ogive curve, it seems thatEach year the sale is increasing by bigger amounts.

Q: Suppose that you have two quarters, one dime and three nickels in your pocket. You randomly select…

A: There are  2 quarters ,1 dime and 3 nickels in the pocket.Total number of coins in the pocket is…

Q: If a two-fictor analysis of varianceproducesastatistically significant inseraction between the two…

A: From the above given data the following solution is provided below.

Q: Show that Y parameter 8. (X₁+2X₂ +3X3) is not a sufficient estimator of the Bernoulli

A: Y=1/6(X1+2X2+3X3) is not sufficient estimator of the Bernoulli parameter

Q: A researcher wishes to estimate, with 90% confidence, the population proportion of families who eat…

A: From the provided information,Confidence level = 90% or 0.90Level of significance (α) = 0.1The…

Q: A psychologist is studying the self image of smokers, which she measures by the self-image (SI)…

A: The provided information is as follows:The level of confidence interval is .The margin of error is…

Q: Question 47: A person recorded the number of clients he saw each day over a 9 day period and…

A: Given , Min = 9 Q1 = 26Q3 = 43Max = 57We have to find the interquartile range ( IQR)

Q: High = 11.6366 years marked as wrong

A: Mean()=13standard deviation() = 2.6Solving the part (c) correctly

Q: Question 1 The data represents the body mass index (BMI) values for 20 females. Construct a…

A: 1) Given BMI values for 20 females are,26.9, 21, 26.1, 48.4, 41.5, 28.2, 26.7, 54, 21.3, 35, 19.2,…

Q: If X and Y are two discrete random variables, and x and y are the realizations of the two random…

A: It is given that X and Y are two discrete  random variables, and x and y are the realisations of the…

Q: Please do not give solution in image format thanku To help plan the number of meals to be prepared…

A: Let B: BreakfastL: Lunch, D: DinnerGiven data notationally,

Q: A poll reported 31% support for a statewide election with a margin of error of 1.36 percentage…

A: Sample proportion()=0.31Margin of error(E)=0.0136Critical value(Z*)=1.645

Q: A study of selected crowdfunded projects showed that overall a majority were successful, achieving…

A:

Q: I Retain the class cabin. The results are below. 2. The people on the Titanic on the voyage in 1912…

A: Given the class cabin-wise survival data of the people on the Titanic on the voyage in 1912…

Q: Assume that a procedure yields a binomial distribution with n = 4 trials and a probability of…

A: Given, Number of trials, n = 4Probability of success, p = 0.30We need to find the probability that…

Q: Over a 3-month period, among 66 people with a sleep disorder, patients who were given a high dose…

A: An experimental study answers a research question based on a study that is performed in a controlled…

Q: Given the sample data 23 17 15 30 27 (a) Find the range 15 (b) Verity that Ix 112 and ²-2.57. Ix->…

A:

Q: (a) What is the probability P[L H] that a tick carrries both Lyme disease (L) and HGE (H)? P[LH] =…

A: It is given that P(Lyme disease) = P(L) = 15% = 0.15P(HGE) = P(H) = 11% = 0.11P(L or H) = 16% = 0.16

Q: A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant.…

A: Given polygon

Q: On a given day, Buffy is either cheerful (c), so-so (s), or gloomy (g). If she is cheerful today,…

A: From the above given data the following solution is provided below:

Q: In a random sample of 250 students at a university, 210 stated that they were nonsmokers. Based on…

A: Sample size n = 250The number of students who stated that they were nonsmokers x = 210Siginficance…

Q: HEEELP PLEASE!   13. Compute with both the definitional and computational formulas the variance…

A: In this problem, we are tasked with calculating the variance and standard deviation for three…

Q: K Listed below are prices in dollars for one night at different hotels in a certain region. Find the…

A: We have given sample data248,291,267,129,77,245,149,99

Q: Does using a cell phone while driving make an accident more likely? Researchers compared telephone…

A: The provided information is as follows:Researchers compared telephone company records and police…

Q: The following are historical demand data: ACTUAL DEMAND 206 135 373 583 474 275 694 952 YEAR SEASON…

A: YearSeasonActual Demand2011Spring204Summer150Fall374Winter5722012Spring474Summer274Fall675Winter964

Q: a. What is the distribution of X? X-NO b. Find the probability that an indoor cat dies when it is…

A: It is given that Mean = 13Standard deviation = 2.6

Q: Suppose that 243 out of a random sample of 325 letters mailed in the United States were delivered…

A: The question is about confidence interval.Given :Randomly selected no. of mailed letters ( n ) =…

Q: A sample of 10 resistors gives the following (sorted) data in Kohms: 39.2 39.3 39.7 39.8 40.0 40.2…

A: Given Sample Dat :39.2 39.3 39.7 39.8 40.0 40.2 40.2 40.3 40.4 41.4

Q: computer program generates random numbers. The numbers have 3 digits which cannot be repeated, and…

A: The numbers have 3 digits,  which can not be repeatedIt must be divisible by 5 Number of unique…

Q: A popular resort hotel has 400 rooms and is usually fully booked. About ​7% of the time a…

A:

Q: 23. For the following scores, find the value of each expression: a. ΣΧ b. (ΣΧ) c. ΣΧ – 3 d. Σ(Χ – 3)…

A: The given data is as follows:X4263

Q: Let A = {1,2} and B = {3, 4}. (a) Find A x B (b) How many subsets Ax B of size 2 are there? List…

A: Given that A= {1, 2} and B= {3, 4}A x B is the cartesian product

Q: A group of 9 biologists, 9 chemists, and 8 physicists want to form a committee of 6 that will…

A: It is given that Biologists = 9Chemists = 9Physicists = 8Total number of members = 26

Q: A used car dealership categorizes its salespeople by the numbers of cars sold per year, with the…

A:

Q: Below is a frequency distribution for the estimated miles per gallon (MPG) for 517 different models…

A: The frequency distribution of MPG is given.

Q: 4. The following table contains the KM estimate of the survival function (S) and its point-wise…

A: The table contains KM estimate of the survival function and its pointwise confidence intervals.From…

Q: From the following data set, which stem will have the longest leaf? (3, 6, 8, 8, 10, 13, 13, 15, 17,…

A: The data are 3, 6, 8, 8, 10, 13, 13, 15, 17, 19, 20, 24, 26, 26, 26, 31, 35, 37

Q: 30. For the following set of scores, find the value of each expression: a. EX² b. (EX)² c. Σ(X - 3)…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…