"ou are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals From a random sample of 47 business days, the mean closing price of a certain stock was $116.08. Assume the population standard deviation is $10.66. The 90% confidence interval is (). (Round to two decimal places as needed.)

Q: fill in the blank Conditional probability P(A|B)

A: Conditional probability p(A/B) is the ratio of two probabilities i.e. the probability of the interse...

Q: A student takes a multiple-choice exam. Suppose for each question he either knows the answer or gamb...

A: P(answer known by the student)=60% =0.60 P(Gambles) =1-0.60=0.40 P(the answer is correct|Known by th...

Q: Which of the following must be entries from the original data set the mode the range the third quart...

A: i) The mode is the maximum frequency or the most repeated observation from the data set. ii)Rage is ...

Q: In a study, the data you collect is Age in years.What is the level of measurement? nominal ordina...

A: In a study, the data you collect is Age in years. There are four different levels of measurement. 1)...

Q: As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color...

A: Total number of cards = 52 Number of red cards = 26 Number of black cards = 26 These cards are split...

Q: The table below lists the populations, in thousands, of several rural western countries. What is the...

A: Mean is the average value of the observations.

Q: From experience, an airline knows that only 70% of the passengers booked for a certain flight actual...

A: Given data,n=8p=70%=0.70P(X>5)=?

Q: In a survey of shopping habits. 600 individuals are chosen at random in super market 'A' located at ...

A: Let market A and Market B are the sample 1 and 2 respectively. Hypothesis to be tested: H0:μ1=μ2H1:μ...

Q: Q. be the sum of the digits of your registration_number, (e.g. 3BA-abc, S i+b+č). Assume that the Se...

A: Given data is, 

Q: Find the sample variance for the following data set: 15 22 29 28 35

A: There are total n = 5 observations.

Q: 1) What is the line of best fit for this data? a. y =-1.11x + 11.83; r=-0.9760964904 Average Speed (...

A: Solution: 1. Let X be the Average speed and Y be the Time. The given data is

Q: ayşe travels often and lately has become lax about giving herself enough time to get to the airport....

A: Let X denote the travel time from front door to airport parking lot. Therefore, X~Nμx=25,σx=3 Let Y ...

Q: Photo attached with the question

A: Introduction: The normal probability is a type of continuous probability distribution that can take ...

Q: Draw stem and leaf plot 12 13 21 27 33 34 35 37 37 40 40 41

A: The data set is: 12 13 21 27 33 34 35 37 37 40 40 41

Q: The distribution of age for players of a certain professional sport is strongly skewed to the right ...

A: I have used CLT to answer this question

Q: A business owner usually requests freelancers to work with, where he pays his freelancers an average...

A: From the given information, the mean is 15.90 and standard deviation 1.50.

Q: Ten students sat for a Mathematics examination which comprises two papers. Their scores out of 100 a...

A: Given information: The test scores out of 100 for 10 students in mathematics examination comprising ...

Q: A sample of average high temperature during July (x) of cities in Colorado compared to their elevati...

A: Given : X Y Xi-X¯2 Yi-Y¯2 Xi-X¯×Yi-Y¯ 90 5280 20.75309 1227172 -5046.54 75 9494 109.0864 964...

Q: Q) Consider the following data: 33     2    43    47    34    38    38    20    33     9    36     ...

A:

Q: A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The manufac...

A: Given Information: Margin of Error (E) = 0.5 (a) To determine the minimum sample size required to co...

Q: The weights for newborn babies is approximately normally distributed with a mean of 6.5 po standard ...

A: 1) It is given that X~ N (6.5, 1.1). The probability that weigh between 3 and 6 pounds is calculated...

Q: Question 6 Compute )

A: This is the notation used for combinations and the combination is calculated asnCr=nr=n!n-r!   r!

Q: The distribution of prices for a certain car model is approximately normal with mean $21,800 and sta...

A: Let X be the prices for a certain car model. Given that, X ~ Nμ, σ2 The mean of X is $21800 and stan...

Q: Find the relative frequency for the class with lower class limit 35 Relative Frequency =

A: relative frequency can be divide the frequency by the total number of data values or total frequency...

Q: Photo attached with the question

A: Z= x-μσ

Q: At a certain high school, the distribution of backpack weight is approximately normal with mean 19.7...

A: Introduction: A sample of 5 backpacks is randomly selected, each of the selected backpacks is weighe...

Q: NutritionResearchers compared protein intake among threegroups of postmenopausal women: (1) women ea...

A: Given, Group Mean Standard deviation n STD 75 9 10 LAC 57 13 10 VEG 47 17 6 The hypothes...

Q: Tabulation of a strike vote showed that 90% of those voting cast their ballot in favor of strike act...

A:

Q: B . Use stapplet to create a scatter plot . C . Describe your distribution(DUFS) Use context ! D ...

A: Here you've given the following data. Let us define the independent and dependent variable. Here X ...

Q: Fill in the P (X= x) values to give a legitimate probability distribution for the discrete random va...

A: Given that, P(X=-4) = 0.30 For legitimate probability function, P(X=-4) =P(X=4)  So P(X= 4)= 0.30

Q: A nutritionist claims that the mean tuna consumption by a person is 3.1 pounds per year. A sample of...

A: Solution: Let X be the tuna consumption by a person. From the given information, n=90, x-bar=2.9 and...

Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the st...

A: Given: Sample size, n = 360           Number of girls born, X = 324           Sample proportion of g...

Q: Consistency of Maximum likelihood estimator: Let {Xi}ni=1be n i.i.d. random variables with distribut...

A: Suppose that the random variables X1, · · · , Xn form a random sample from a distributionf(x|θ); if ...

Q: Q) Consider the following data: 62    61    83    92    67    89    83    50    80    69    95    50...

A: Given data is appropraite for measures of central tendency and measures of dispersion. we need to fo...

Q: Identify the five number summary of the following data set. 7, 11, 21, 28, 32, 33, 37, 43

A: The five number summary is, Minimum First quartile(Q1) Median(Q2) Third quartile(Q3) Maximum. The gi...