The wingspan of a rare butterfly is normally distributed with mean (u) 12.0 mm and standard deviation (o) 2mm. Answer the following: 1. The z-score for a wingspan greater than 11mm is ( Select ] 2. The proportion associated with a wingspan greater than 11mm is [ Select ]

Q: The physical plant at the main campus of a large state university receives daily requests to replace…

A: We want to find the probability (%) P(49<X<79)= ?  X~N(μ=49,σ2=102)

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A: It is given that the mean is 77.9 and standard deviation is 2.4.

Q: The mean blood cholesterol concentration of a large population of adult males (50-60 years old) is…

A: Given data,Mean μ=200sd σ=20

Q: The number of plants pollinated by bees follows a normal distribution with a mean of 6,543 plants…

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Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: Solution: Let X be the number of daily requests. From the given information, X follows normal…

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A: The empirical rule for normal distribution states that 95% of data lies within 2 standard deviations…

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Q: assume that the mean weight of 1 year-old girls in the Philippines is normally distributed with a…

A: Let X denotes the weight of 1 year-old girls in the Philippines which follows normal distribution…

Q: The mean annual income of certified welders is normally distributed with a mean of $50,000 and a…

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Q: 1. The mean serum level measured in 12 patients twenty-four hours after they received a newly…

A: Hypothesized Population Mean (µ) = 1 mg/dl The provided sample mean is = 1.2 mg/dl Sample standard…

Q: A paint machine dispenses dye into paint cans to create different shades of paint. The amount of dye…

A: Let "X" be the amount of die dispensed into the can.

Q: In a certain city, the average 20- to 29-year old man is 69.8 inches tall, with a standard deviation…

A:

Q: The average cost of tuition plus room and board for a small private liberal arts college is reported…

A: We have given that  Sample size n =350 Sample mean = 8745  Population standard deviation =1200

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: 4. Distribution of heights of elderly English women is known to be normal with a mean height of 160…

A: As per Bartleby guideline expert have to answer first question three subpart only dear student…

Q: Does the average Presbyterian donate less than the average Catholic in church on Sundays? The 49…

A: Note: Hey there, here degrees of freedom is 91. In order to find the p-value, the “critical value…

Q: The average pre-school cost for tuition fees last year was P17,250. The following year, 20…

A: Given that  Population mean = 17250 Sample mean = 16150 Sample size (n) = 20  Alpha = 0.10. By using…

Q: Use a 5% significance level to test the claim that the standard deviation of birthweights of girls…

A: The claim of the test is that the standard deviation of birth weights of girls is different from the…

Q: The shaded region under a Normal distribution with mean 50 and standard deviation 2 is shown. Which…

A: Given Data: The graph is of Normal Distribution   Mean=50 Standard deviation=2

Q: Use a 10% significance level to test the claim that the standard deviation of birth weights of girls…

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Q: The credit card balances on 1,000 accounts at the Jefferson Valley Bank have a mean of $760 and a…

A: mean = 760 s = 120 n = 1000

Q: A used car dealer says that the mean price of used cars sold in the last 12 months is at least…

A: Given information- Average starting salary, μ = $21,000 Sample size, n = 14 Degree of freedom, df =…

Q: If the mean asset turnover for retail firms is 1.91 with a standard deviation of 0.23, without…

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Q: The weight of an organ in adult males has a​ bell-shaped distribution with a mean of 310 grams and a…

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

Q: The physical plant at the main campus of a large state university receives daily requests to replace…

A: Given, The distribution of the number of daily requests is bell shaped with mean of 52 and standard…

Q: The average farm size in the United States is 444 acres. A random sample of 40 farms in Oregon…

A: Given :  μ = 444 σ = 52 x¯ = 430 n = 40 α = 0.05 Hypothesis : H0 : μ = 444 H1 : μ ≠ 444

Q: The current production goals for the monthly production level of the cases are a mean of at least…

A: For Tampa, Florida location: H0: The population mean is at least 1,000 units per month. H1: The…

Q: 3. The blood pressure of adult males is nomally distrībuted with a mean of 125mm/hg and a standard…

A: Given data,μ=125σ=8

Q: The average cost of tuition plus room and board for a small private liberal arts college is reported…

A: It is given that the population standard deviation is $1,200 and sample mean is $8,757 and sample…

Q: A company claims that the time their customers spend waiting in line for service is normally…

A: Given that  The company claims that the time their customers spend waiting in line for service…

Q: For males in a certain town, the systolic blood pressure is normally distributed with a mean of 115…

A: Using property of empirical rule we can easily find out the required percentage

Q: The physical plant at the main campus of a large state university receives daily requests to replace…

A: We want to find the probability by using emperical rule

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Q: When 40 people used Weight Watchers for one year, their mean weight loss was 3.0 lbs and their…

A: The test hypotheses are given below: H0:μ=0 lbsHa:μ>0 lbs From the given information, the…

Q: The heights of Canadian men are normally distributed with a mean of 71.4 inches and a standard…

A: The 68-95-99.7% (Empirical) Rule: For a normal distribution, the empirical rule (68-95-99.7% Rule)…

Q: A quick survey of peanut butter prices had standard deviation and mean of $0.26 and $3.68,…

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Q: The distribution of average hours of sleep per weeknight among college students is found to be…

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Q: (a) Steel used for water pipelines is coated on the inside with cement mortar to prevent corrosion.…

A: We want to find the probability  P(0.55<x<0.60)

Q: A trucking company determined that the distance traveled per truck per year is normally​…

A: Solution-: Let, X= The distance traveled per truck per year Given: We find, P[ either less than…

Q: A 7,000-seat theater is interested in determining whether there is a difference in attendance…

A: Solution: Let X1 be the attendance on Tuesday evening, X2 be the attendance on Wednesday, n1 be the…

Q: The heights of English men are normally distributed with a mean of 71.2 inches and a standard…

A: Empirical rule: 68% of all possible observations lie within one standard deviation from the mean.…

Q: A report from 2010 indicates that Americans between the ages of 8 and 18 spend an average of μ = 7.5…

A: Given: Americans between the ages of 8 and 18 spend an average of μ = 7.5 hours per day distribution…

Q: The heights of German men are normally distributed with a mean of 67.9 inches and a standard…

A:

Q: A 7,000-seat theater is interested in determining whether there is a difference in attendance…

A:

Q: The average cost of tuition plus room and board for a small private liberal arts college is reported…

A:

Q: 1. The average height of a Filipino female is 151.8 cm with standard deviation of 6 cm. What is the…

A: As per the honor code, We’ll answer the first question since the exact one wasn’t specified. Please…

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: Given: According to the empirical rule, Therfore,

Q: The heights of German men are normally distributed with a mean of 67.9 inches and a standard…

A: a) Empirical rule: The probability of the observation lies within 1 standard deviation of the mean,…

Q: In the p-chart of Audit Data shown below, if the estimate of the standard deviation was 0.0724, what…

A: Solution: Given information: The control limits of  p chart are  UCL = 0.4203 Central Line = P =…