You are given the sample mean and the population standard deviation. Use this information convenient, use technology to construct the confidence intervals. construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence in A random sample of 50 home theater systems has a mean price of $142.00. Assume the population standard deviation is $15.40. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( ). (Round to two decimal places as needed.)

Q: A bag contains 3 red marbles, 9 white marbles, and 15 blue marbles. You randomly select one marble f...

A: Ans#- Given, A bag contain 3 red marbles, 9 white marbles, and 15 blue marbles.            Total = 3...

Q: 49. It is estimated that 63% of Americans will watch the Masters golf tournament and only 48% will w...

A:

Q: This problem involves 8-digit binary strings such as 10011011 or 00001010 (i.e., 8-digit numbers com...

A:

Q: A random sample of 16 pharmacy customers showed the walting times below (In minutes). 16 21 20 24 17...

A:

Q: 45 If the probability of an event is Write your answer as a simplified fraction. ,what is the probab...

A: Ans#- If the probability of an event is  4573            what is the probability of the event not ha...

Q: Over the past several months, an adult patient has been treated for tetany (severe muscle spasms). T...

A: a) Step-by-step procedure to find the mean and standard deviation using TI-84 calculator:  Enter ST...

Q: 2. Compute the confidence interval of population proportion. Among 1500 Filipino women included in a...

A: Given,n=1500x=765p^=xnp^=7651500=0.511-p^=1-0.51=0.49α=1-0.95=0.05α2=0.025Z0.025=1.96     (from Z-ta...

Q: Discuss the way someone can perceive and consume statistical information experienced in everyday lif...

A:

Q: Heights of men on a baseball team have a bell-shaped distribution with a mean of 177 cm and a standa...

A:

Q: Compute the Correlational Analysis:

A: Given Information: The table that shows the result of the relationship between the variable status a...

Q: A license plate has six characters. Three characters are letters, two characters are numbers (0-9), ...

A: Given that - A license plate has six characters. Three characters are letters, two characters are nu...

Q: P(9,5) · P(5,5) - C(9,5) · C(5,5) ank 1:

A: Farmula used r!=r(r-1)(r-2)x...x3x2x1

Q: A ball is drawn randomly from a jar that contains 7 red balls, 4 white balls, and 9 yellow balls. Fi...

A:

Q: A test was given to a group of students. The grades and gender are summarized below   If one stude...

A:

Q: Confidence level Critical value 0.90 z = 1.645 0.95 1.960 %3D 0.99 z* = 2.576 %3D 377308.2364912.gx3...

A: Given data    confidence level         critical value        0.90                            z*=1.64...

Q: There are three nursing positions to be filled at Lilly Hospital. Position 1 is the day nursing supe...

A:

Q: If all possible random samples of size =45 are selected from a population with μ=69 and a σ=6, and t...

A:

Q: dents passed a test in wnich the top three will get a prize. How many posSible ways are there to get...

A: Given that : Total student passed a test (n) =  10 Student get a prize (r) = 3 By using permutations...

Q: One word is randomly selected from the following sentence: THE GRASS NEEDS CUTTING AND SHOULD BE CUT...

A:

Q: The University is considering changing the email system that they currently use. Since there are sub...

A: Formula   Test statistic

Q: From the following data construct Laspayres Price index number in 1989 with 1986 as base year. Соmmo...

A:

Q: The height of wonen ages 20-29 is normally distributed, with a mean of 64.5 inches. Assume a=2.8 inc...

A:

Q: displays blood pressure status by gender.                                     Blood Pressure by Gen...

A: 1. The proportion of the participants has optimal blood pressure is, Poptimal blood pressure=65390  ...

Q: Statistical inference uses statistical methods to make decisions about the population. It utilizes t...

A: Statistical inference are used to make conclusion or inference about the population. The information...

Q: It is known that 60% of customers will need additional maintenance on their vehicle when coming in f...

A: We have given that  Sample size n =50 Sample proportion p^=60%=0.60

Q: 25) The following bar chart for these data shows Bar Chart of Number of Cosumers 160 140 120 100 00 ...

A: Marginal distribution displays the column or row total of each categorical level.

Q: Suppose you and I play the game rock-paper-scissor twice. Assume mixed strategies (randomizing among...

A: Given: Suppose you and I play the game rock-paper-scissor twice. Assume mixed strategies (randomizin...

Q: Consider the data. x, 1 3. 4 Y:4 S 6 10 12 The estimated regression equation for these data is ý 2.6...

A: For the given data Find ( b ) r^2 =? Comment on the goodness fit ( c ) Correlation = ?

Q: The table below is a probability distribution of a discrete random variable X. Find its mean. 1 2 3 ...

A:

Q: The standard deviation of the wages of 400 textile workers is $ 12.8. Another sample of 600 textile ...

A: Given that  Sample size(n1) =400 Standard deviation =12.8 Sample size (n2)=600 Standard deviation =$...

Q: How many triangles can you make using 6 non collinear points on a plane? A committee including 3 boy...

A: Number of possible arrangement of data set is studied using the permutation and combination. Permuta...

Q: A coach uses a new technique to train gymnasts. 7 gymnasts were randomly selected and their competit...

A:

Q: One of the characteristics of a standard normal curve is that its variance and standard deviation is...

A: We want to tell you which one is the correct choice 

Q: NHTSA crash tests. Refer to the National Highway Traffic Safety Administration (NHTSA) crash tests o...

A: a. The value of P(X=x) is obtained by dividing percent by 100. The probability distribution of x is ...

Q: A random size of 3 is taken with replacement from a population. With u = 8 and o = 4

A: Given:  population mean μ =8 and standard deviations σ=4  sample of size n=3 from the population wit...

Q: A survey was conducted to determine how people rated the quality of programming available on televis...

A: The stem and leaf display of the given data is, From the plot, the total no.of respondents rated ov...

Q: A sales manager collected the following data on x = years of experience and y = annual sales ($1,000...

A: ( a ) SST = ? SSR = ? SSE = ? ( b ) r^2 = ? ( c ) r = ?

Q: Exercise 6E For each set of data: a X 10 11 12 13 14 15 16 17 18 i Plot the points on a scatter diag...

A: Given that  Data x and y as follows: x y 10 18 11 20 12 19 13 21 14 24 15 23 16 2...

Q: A jar contains 80 chocolate chip cookies and 35 oatmeal cookies. Assume sampling is done with replac...

A: Given information: A jar contains 80 chocolate chip cookies and 35 oatmeal cookies. Assume sampling ...

Q: Find the 80% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate...

A: Confidence Interval:   Let X1,X2,X3, ...Xn  be a random sample from probability density function f(x...

Q: Based on the statement “Can you conclude that the mean wind speed when it is less than 12m/s? Use α ...

A:

Q: Cholesterol levels for males aged 50 have a mean of 210 and a standard deviation of 22.8. Using the ...

A: Given that  X~N( μ =210, ? =22.8) μ = 210 , ? = 22.8

Q: Ship Name Sanitation Score Adonia 96 Adventure of the Seas 93 AID Aaura 86 AID ABella 95 AID Aluna 9...

A: Note: As per my policy i can answer only one question. kindly repost the remaining questions Given d...

Q: Calculate a 95% confidence interval (show your work) for the population mean of total cholesterol le...

A: It is given that Sample size n = 30 Sample mean M = 5.20 Sample SD s = 1.3 The critical value of t a...

Q: The heights of a group of men averaged 69 inches and followed the normal curve. The 91st percentile ...

A: Solution: Let X be the height of group of men. μ= 69 inches  Average height of men.  The 91st percen...

Q: For a population with u = 34 and o = 8, what is the X value corresponding to z = -0.50?

A: We have given that.   X~N( μ , ?^2 )   μ =34 , ? =8      Z-score =( x - μ )/?   Z= -0.50

Q: A researcher thinks that the mean starting salary for San Jose State University graduates is under $...

A: Claim: The mean starting salary for San Jose State University graduates is under $100,000 per year T...

Q: anna has 3 English books, 4 Math books and 2 Science books.               a. In how many ways can ...

A:

Q: PC World provided ratings for the top five small-office laser printers and five-corporate laser prin...

A: Introduction: It is required to find the correlation coefficient between the printing speed and pric...

Q: A jar contains 4 red marbles numbered 1 to 4, 12 blue marbles numbered 1 to 12, and 8 white marbles ...

A: As per company guidelines I solved exactly three subparts of the question .thank you ?