For public information, an outsourced statistics professional was asked to provide an average daily flight cancellations in a particular airport. The statistician sampled 50 operation days and found an average of 32 daily cancellations. From a previous data, the standard deviation of all flight cancellations are 6.5 days. At 98% level of confidence, provide an interval estimate of the average daily flight cancellations in the airport. Express your answer by copying the text below and substituting the correct values (rounded off in one decimal place) in the positition of letters a and b. a days to b days

Q: One prominent physician claims that 80% of those with lung cancer are chain smokers. Compute the…

A: Here, we can consider that it is Binomial distribution because  80% of people has lung cancer and…

Q: The election results were announced in a country. The number of seats in state Mozi had a mean of…

A:

Q: The tallest living man at one time had a height of 261 cm. The shortest living man at that time had…

A:

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: For Carver:mean(μ)=10.1standard deviation(σ)=2.3and score (X)=13.2For Bryant:mean(μ)=9.8standard…

Q: An economist wants to find out if there is difference in the monthly expenses of families from…

A:

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

A: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

Q: Suppose that the lengths of pregnancies are normally distributed with a mean of 274 days and a…

A: The provided information is  µ=274 σ=10 P(X>280) P(X-µσ>280-27410)=P(z>0.6000)=0.2743 (from…

Q: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

A: A vending machine dispenses coffee into a twenty-ounce cup. Given that σ=0.01 You can allow the cup…

Q: Deforestation along the Sierra Madre mountains have been especially notorious. The average number of…

A: Given that.   X~N( μ , ?)   μ=4373    , ?=610   Z-score =( x - μ )/?

Q: A vending machine is designed to dispense a mean of 7.8 oz of coffee into an​ 8-oz cup. If the…

A: Let X be the random variable from Normal distribution with mean (μ) = 7.8 and standard deviation (σ)…

Q: A recent survey found that 61​% of all adults over 50 wear glasses for driving. In a random sample…

A: A recent survey found that 61​% of all adults over 50 wear glasses for driving. In a random sample…

Q: According to a local newspaper, students at a local university usually take 4.5 years to graduate. A…

A: 1) Here the parameter is that average number of years required to graduate. Thus, μ=4.5 Claim: A…

Q: A study conducted by the Center for Population Economics at the University of Chicago studied the…

A:

Q: Chris tested a sample of 20 Brand A electronic engine control modules, and they lasted 48,560…

A: The sample mean and standard deviation for Brand A electronic engine control modules is;…

Q: Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a…

A: For the distribution of the price of the recently sold homes, the parameters are specified as…

Q: Pyramid Lake is en the Paiute andan Reservation in Nevada. The lake is famous for cuthreat trout.…

A: a)   Assume that μ is the true mean length of trout caught in Lake P.

Q: A World Health Organization study of health in various countries reported that in Canada, systolic…

A:

Q: he director of research and development is testing a new medicine. She wants to know if there is…

A: Here it is given that- Total number of samples(n) = 34 Mean(x)¯ = 320 Standard deviation(δ) = 24

Q: The amount of sodium was measured for a sample of 30 different breakfast cereals.  The sample mean…

A: Givensample size(n)=30Mean(x¯)=220standard deviation(s)=77x=408

Q: A student earned a 75 on a calculus exam, and she earned a 68 on a linear algebra exam. The calculus…

A:

Q: Last year, the revenue for medical equipment companies had a mean of 7070 million dollars with a…

A: The objective of this question is to find the percentage of medical equipment companies with revenue…

Q: A candy manufacturer has replaced 5.17% of their chocolate bars with a new mystery flavor. Find the…

A: Given: Sample size (n) = 424 p(chocolate bars with a new mystery flavor) = 5.17% = 0.0517

Q: The stature of men is normally distributed, with a mean of 69.0 inches and a standard deviation of…

A: From the given information, the mean of women is 63.6 inches and standard deviation is 2.5 inches.…

Q: student scored in the 75th percentile on the SAT. What does that mean?

A:

Q: The mean height of males 20 years old or older is 69.1 inches with a standard deviation of 2.8…

A: given data x = height of 20 years old or older μ = 69.1  inchesσ = 2.8 incheskevin's height,x = 83…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: A baseball team is reviewing their batting statistics. The mean number of hits for the batters on…

A: Given Population mean μ=124,  standard deviations σ=14.5  Let X be the baseball team is reviewing…

Q: According to the National Center for Health Statistics, the mean systolic blood pressure for males…

A:

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: From the provided information, Mean (µ) and standard deviation (σ) of the school in Los Angeles…

Q: An economist wants to find out if there is difference in the monthly expenses of families from…

A:

Q: A study was made to determine if the subject matter in a physics course is better understood when a…

A: The following information has been provided: x¯1=85s1=4.7n1=11x¯2=79s2=6.1n2=17 It is assumed that…

Q: A radio station claims that the amount of advertising each hour has a mean of 17 minutes and a…

A:

Q: For public information, an outsourced statistics professional was asked to provide an average daily…

A: given data n = 50x¯ = 32σ = 6.598% ci for μ = ?

Q: students made an average grade of 85 with a standard deviation of 4.7, and in the section without…

A:

Q: A student earned a 79 on a precalculus exam, and she earned a 92 on a statistics exam. The…

A: Answer:- Given, The precalculus exam had a mean score (µ) =72.3 with a standard deviation (σ) = 8.4.…

Q: The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one…

A: In this intriguing analysis centered around traffic speeds near Johnson City High School, the…

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: Jared has a mean of 74 on his quizzes, with a standard deviation of 7. On his most recent quiz, he…

A: If the z-score lies within 2 standard deviation away from the mean, then the score is not unusual…

Q: 56. Blood pressure According to a health informa- tion website, the distribution of adults'…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: There are eight patients waiting in a doctor's waiting room.  They have been waiting for 9 minutes,…

A: Let us denote the waiting times as X. X 9 2 5 4 12 7 8 11 Consider, the mean of X is, X¯=∑Xn…

Q: Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the…

A: