The time spent commuting from home to work for all employees at a very large company has a normal distribution with a mean of 165 minutes and a standard deviation of 12 minutes. Determine the probability that the mean time spent commuting by a random sample of 55 employees is between 163.2 minutes and 165.6 minutes. O 0.6764 O 0.5116 O 0.8971 00 133

Q: Prove using the properties of set operations: a. ((AUB)–C)° = (A–C) – (B – C)

A: Solution

Q: Statistical Inferences:Question 6 The heights of juniors at a certain high school have a mean of…

A: Given Mean=65.5 Standard deviations=3.5

Q: Suppose x is a normally distributed random variable with μ=10 and σ=2. Find each of the following…

A: Given μ=10σ=2

Q: Determine each sentence is a statement. 1. Open the door. 2.7055 is a large number. 3. In the year…

A: The objective is to find whether the given sentence is a statement or not.

Q: ant Relationship: is a functional relationship between Price of an IPod Touch,p and Wee is a table…

A: Given,

Q: standard deviation

A: If the random variable X follows a distribution with mean = μ and standard deviation = σ Then the Z…

Q: Suppose that 23% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that 23% of people own dogs, if you pick two people at random  Then probability that they own…

Q: A sample is selected from a normal population, and resulting data are as follows: 45.2, 51.5, 49.4,…

A: Given: Sample size n = 6 Significance level α = 0.05   Formula Used: Test-statistic t = X-μSn

Q: that has a sharper-rising center peak than the peak of a normal is called and has a kurtosis. A…

A: Kurtosis measures how heavy the tails of the distribution are.

Q: We want to be at least 95% confident that the error is at most 0.06, then the sample size is.. A.…

A: Solution

Q: How many outcomes are possible if you toss a coin six times?

A: Given data How many outcomes are possible if you toss a coin six times.

Q: sume that each car con s more than just seven any options do you have

A:

Q: Prove using the properties of set operations: a. A - B and An B are disjoint.

A: Solution-: We want to prove A-B and A∩B are disjoint.

Q: Six girls and five boys wish to join a ski trip. Four of them will be selected at random. What is…

A: Six girls and five boys wish to join a ski trip. Four of them will be selected at random. What is…

Q: The registrar's office at a university has noticed that a large number of students fail to report a…

A: Given data: 1.95 % confidence interval 2. Proportion = 0.60 To find : Correct option

Q: For numbers 20-22, refer to the given problem population owns a home. In a random sample= determine…

A: Note : As per answering guidelines I have to only one question in case of multiple different…

Q: Do you think statistics is useful in business analysis? Discuss in not more than 150 words

A: Solution: Do you think statistics is useful in business analysis?

Q: What type of test would you use to test that M&M follows their stated distribution?

A: Test is that whether M&M follows their stated distribution.

Q: . If the points on the scatter graph follow a trend of rising from right to left, how will you…

A: Note : As per answering guidelines I have to only one question in case of multiple different…

Q: f the maximum error with 0.99 probability is 0.25 and a sample size 400, then the standard deviation…

A: Maximum error=Margin of error=0.25 Sample size; n=400 α=0.01

Q: Agree Somewhat agree Somewhat disagree Disagree A. 40% C. 76% Age (years) 18-34 35-54 55+ 20 12 4 18…

A: Given, Each person in the survey summarized in the table was asked their response to the statement…

Q: Video game console use: A market research company estimated the numbers of people in various gender…

A: From the provided information, Gender and Age Group Frequency Males 2 – 11 13.6…

Q: PROBLEM SET NUMBER 5: Measure of Position for Ungrouped Data. Consider the following data set below.…

A:

Q: Suppose a random sample of 100 abservations from a binomial population gives a value of p=0.77 and…

A: The following information has been given: The population proportion is p=0.70. The sample proportion…

Q: In a study, the sample is chosen by dividing the population into voting precincts, and sampling…

A: Explanation: Here given the question  Find the what is the sampling method  Finally the option d…

Q: For detyron, calf dehorning has become a routine practice at dairy farms. A report from a particular…

A:

Q: Refer to the accompanying data set and use the 30 screw lengths to construct a frequency…

A: Given : Class width =0.010 Number of lengths =30

Q: 4. How many samples are needed for the sample size to be considered as large? A. n>10 B. n>20 C.…

A: It is given that the statements. Here, need to find out the correct choices for the given statement.

Q: A. -0.06 B. 0 C. 0.11 21. Which of the following statements about correlation is NOT correct? A.…

A: (21) We have given that,  We have to check which of the following statements about correlation is…

Q: Problem 1 The lives of a certain type of carpet cleaners are approximately normally distributed with…

A: Solution

Q: a. Which between the 3% and the 5% margin of error will allow the department to work within the…

A:

Q: ro A manufacturer wants to measure the relationship between the sweetness index (y) of peach juice…

A: Given : Sample correlation (r) : Given : Y X 5.7 231 5.5 227 5.3 259 5.9 210 5.8 224…

Q: An auditor is checking the records of an accountant who is responsible for ten clients. The accounts…

A: Dear student according to guidelines we answer the first question only. Solution

Q: does the histogram appear too approximate a normal distribuition why or why not

A: Histogram is the graphical representation of distribution of a continuous data.

Q: Show the CDF of the random variable X with the following pdf: fx(x) = -10,2 (2)

A: The CDF of random variable X is defined as F(x) = P(X ≤ x) Note : Since you have asked multiple…

Q: first class.

A: Step 1: Using the lower limit as 30 and a width of 10, make the classes.

Q: The number of concurrent users for some internet service provider has always averaged 3000 with a…

A: Given data: Mean = 3000 Population standard deviation = 500 Sample size = 100 Sample average  = 4200…

Q: Suppose we find enough evidence against the H0 below. Write the appropriate step C. N. H0: μ ≤ 8…

A: Suppose we find enough evidence against the H0below. Write the appropriate step C.N. H0: μ ≤ 8A. Ha:…

Q: II. Problem Solving (11-20) The table shows the height(x) and weight(y) of seven basketball players.…

A: The provided information is  x y xy x2 y2 62 57 3534 3844 3249 63 60 3780 3969 3600 65 58…

Q: T1.Q3) A university class ckntained 60 female students. they were asked to report their hieghts (in…

A: The question about normal dist. Given : No. of female students ( n ) = 60 Mean of the heights ( μ )…

Q: With 99% confidence, maximum error is 0.06 and the proportion p = 0.5. Find the sample size. a. 463…

A: It is given that  Maximum error, E = 0.06 Proportion, p = 0.5 Confidence level = 99%

Q: An oil company conducts a geological study that indicates that an exploratory oil well should have a…

A: Geometric distribution: The probability mass function of Geometric distribution is P(n) = p(1 - p)n…

Q: A study done by researchers at a university concluded that 90% of all student athletes in a country…

A: The question is based confidence interval for a popl. proportion Given : Prop. of all student…

Q: Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two…

A: Formula : CI=point estimate ± ME

Q: Authors of a computer algebra system wish to compare the speed of a new computational algorithm to…

A: Solution

Q: that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence…

A: here calculate sample statistic and then confidence Interval

Q: 4. Consider a gambler who wins P50 if the sum of dots in a toss of a pair of fair dice is Cyther 7…

A: Consider  Gambler wins=50 Gambler loses=10 Toss of pair of fair dice which outcomes are S={(1,1)…

Q: For ANOVA, the denominator of the F-ratio is called the Obetween groups total error treatment term.…

A: An Analysis of variance is performed.

Q: QUESTION 10 calculate Σ Σ Ν-ΡΟα... X 5 6 4 7 2

A: According to the given information in this question We need to find the sum of these numbers

Q: Scores on an intelligence test are normally distributed, with a mean of 100 points and a standard…

A: Given Mean=100 Standard deviations=15