Stratum 1 2 N₁ 22000 18000 n₁ 1100 900 Number with mobile phone in the sample 110 600 Calculate an interval estimate of the proportion of young people with their own mobile phone in the municipality with a 95% confidence level.

Q: 2. A class wants to know who in their town likes basketball. The class asks people at the mall.…

A: Convenience sampling is a non probability sampling i.e., the chances of being selected units is…

Q: Can you show me how to solve the question above in excel please?

A: null and alternative hypothesis H0:μ=0H1:μ≠0

Q: How should I get z critical using this picture?

A: A critical value is the cut-off value used in hypothesis testing to accept or reject the null…

Q: at a certain school, 34% of the students will qualify for financial aid type A and 19% will qualify…

A: Given information: PA=0.34PB=0.19PA∩B=0.051

Q: 10.116 The following table shows a partially completed ANOVA table for a two-factor factorial…

A: Hi there! Thanks for posting the question. Since you have posted a question with multiple sub parts,…

Q: Suppose that 65% of the 310,000 citizens in a county are registered to vote. A non-profit…

A: Given data: Proportion:p = 0.65 Sample size:n =100 To find: What is the mean and the standard…

Q: Pillman et al. (A-11) studied patients with acute brief episodes of psychoses. The researchers…

A: The given contingency table shows the personality type.

Q: For this series of questions, you will conduct an F test and a two-tailed t-test on samples from the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: 7. The table below shows the average life expectancy (in years) based on certain birth years. Birth…

A: 7. For the given data we need to find the line of best fit.

Q: Heights were measured for a random sample of 18 plants grown while being treated with a particular…

A: Givensample size(n)=18sample mean(x)=37sample standard deviation(s)=9significance level=0.05

Q: How do you solve this problem using a TI-84 Plus calculator?

A: It is given that the hypothesized population proportion (p) is 1/2 =0.50.

Q: Select all that apply for confidence intervals. CIs show the magnitude of the association of…

A: Confidence intervals are used to estimate the population parameter is likely to lie with a certain…

Q: A publishing company is studying the sales of various franchises in their chain of stores. A…

A: The 99% confidence interval is the widest interval and will include the smallest sample mean values.

Q: linear regression for the cost of a round-trip ticket given the distance traveled, use your…

A: Here dependent variable = Cost Independent variable = Distance Sample size (n) = 9

Q: A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent…

A: Given data,Number of registered voters n=800 registered voters in the state that would vote to raise…

Q: BE SURE TO ANSWER THE LAST OPEN ENDED QUESTION!! Petra is doing a survey Which of the following…

A: Given that Which of the following descriptions is an example of convenience sampling? A. Petra…

Q: The owner of a moving company typically has his most experienced manager predict the total number of…

A: Given information- We have given that the owner of a moving company predicts the total number of…

Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a…

A: given data population mean ( μ ) = 18population sd ( σ ) = 2sample size (n) = 13find mean of the…

Q: 1. A university found that 15% of its students withdraw without completing the introductory…

A: Given that, The random variable X is students withdraw without completing the introductory…

Q: A population of values has a normal distribution with μ = 144.5 and o= 85.5. You intend to draw a…

A: Given The data is as follows: Population mean, μ=144.5 Population sd, σ=85.5 Sample size, n=198

Q: the score of ryan in English is 1 unit standard deviation above the mean. His score in Mathematics…

A: Given information Z score=1 for English Z score=0.5 for Mathematics

Q: I just want to know if this this correct? The mean gave me this entire number, but it asks for all…

A: The given mean of the variable LOS is 7.5416.

Q: Disadvantages of using a related sample (either one sample of participants with repeated measures or…

A: Disadvantages of using a related sample (either one sample of participants with repeated measures or…

Q: A journal article reports that a random sample of 25 antivirus software packages was used as a basis…

A: given data  98% confidence interval for μ :  (206,293) margin of error (E) = ?

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population…

A: We have given that,  Confidence interval = 99%, margin of error (E) = 4 and population standard…

Q: The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5. What…

A: Let , X→N(μ=6.4 , σ=1.5) Here , we want to find the P(X<7)

Q: Week 10 –Statistical Inference for Two Variables oExamples of each ofthe following, with all the…

A: As you've asked more than 3 subparts of a question, according to Bartleby honor code, as an expert…

Q: A local five-star restaurant asks its patrons to fill out a quick satisfaction survey (is the patron…

A: From the provided information, Sample size (n) = 140 Sample proportion (p̂) = 0.777

Q: Number of Farms A random sample of the number of farms (in thousands) in various states follows.…

A: Answer  Given  95,47,50,40,109,78,6,52,21,15,7,68,16,48,79,44 n =16  Confidence interval =90% sigma…

Q: A true-false quiz with 10 questions was given to a statistics class. Following is the probability…

A: Answer:- Given the probability distribution for the score of a randomly chosen student is, X 5 6…

Q: People come to relationships with different attachment styles that partially stem from the…

A: Introduction: The self-disclosure rating of the date is being used to predict how much the date will…

Q: 7. The lifetimes of light bulbs of a particular type are normally distributed with a mean of 250…

A: Here the given information is The lifetimes of light bulbs of a particular type are normally…

Q: Researchers are studying the effect of smoking on the time it takes to fall asleep.  A random sample…

A: The question is about confidence interval Randomly selected no. of smokers ( n1 ) = 50 Sample mean…

Q: Empirical evidence shows that the "normal" resting adult body temperature is normally distributed…

A: Given that.   X~N( μ , ?)   μ=98.2 , ?=0.7   Z-score =( x - μ )/?

Q: X ~ N(37.3, 5)  a)  What score is at the 73rd percentile? b)  What score is at the 40th percentile

A: X ~ N(37.3, 5)  We have to find  a) What score is at the 73rd percentile? b) What score is at the…

Q: How did you get the cumulative

A: Given information: data value frequency 16 6 17 7 18 5 19 4 20 2

Q: The following table gives the sales of CD_Rom drives and compact disk players for selected years and…

A: Given information: The data for the sales of CD_Rom drives and compact disk players for selected…

Q: Problem 3. Please answer the following questions succinctly. Most of them can be answered with a…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A random sample of the closing stock prices in dollars for a company in a recent year is listed…

A: From the provided information, Population standard deviation (σ) = 2.12 Sample size (n) = 16…

Q: Sir Francis Galton, in the late 1800s, was the first to introduce the statistical concepts of…

A: The value of the sample correlation coefficient is 0.761.

Q: (a) For which data set is the sample correlation coefficient r closest to 1? (b) (Choose one) the x,…

A: It is known that the values of correlation coefficient lies between -1 and 1. Note : According to…

Q: A local five-star restaurant asks its patrons to fill out a quick satisfaction survey (is the patron…

A: Given that: Sample proportion, p=0.791 Sample size, n=150

Q: As discussed in the Wall Street Journal story, weighting is designed to adjust poll results to give…

A: Given information, As discussed in the Wall Street Journal story, weighting is designed to adjust…

Q: Seven puppies were born in a litter, and it is determined whether each puppy is male or female. How…

A: Each puppy can be either male or female, so there are two possible outcomes for each puppy. Since…

Q: Suppose that for a particular computer salesperson, the probability distribution of x = the number…

A: a) We have given the random variable x defines the number of systems sold in 1 month. The…

Q: Andrew plans to retire in 40 years. He plans to invest part of his retirement funds in stocks, so he…

A: Answer  By using the given data is:  mean 8.7%. standard deviation 20.2%.  Andrew plans to retire in…

Q: ← Here are summary statistics for randomly selected weights of newborn girls: n=242, x=33.8 hg,…

A: Given The data is as follows: n=242x¯=33.8s=7.8CL=0.95

Q: We're trying to find a range of values for the proportion of college students who smoke. Would this…

A: Given that Point estimate: It is a single value. Interval estimate: It is a range of the values l

Q: According to the Chebyshev Theorem, at least what percentage of the data lies within 3.5 standard…

A:

Q: Consider the following hypothesis test. Ho: μ = 22 Ha: μ = 22 A sample of 75 provided a sample mean…

A: Given that, The hypothesis is H0:μ=22Ha:μ≠22 The sample size n=75 The sample mean x¯=23 The…