The number of small air bubbles per 3 feet by 3 feet plastic sheet has a Poisson distribution with a mean number of 3.5 per sheet. What percent of these sheets have no air bubbles?
Q: The heights of a particular type of tree are normally distributed with a mean height 20.2 feet and…
A: The heights of a particular type of tree are normally distributed with a mean height , μ = 20.2 feet…
Q: A) A bell-shaped distribution has a mean ?=1200 and standard deviation ?=340. Find the proportion…
A: Theoretical distribution is a branch of a frequency distribution. The theoretical distribution…
Q: 16 Sacks of grain packed by an automatic machinc loader have an average wcight of 114 pounds. It is…
A:
Q: = For the given data, the x = 8.9008 inches (round your response to four decimal places). Based on…
A: The tabulated sample means and ranges areSampleSample…
Q: According to the Pak Car Dealers, the mean price for used cars isRs. 900,000. A Firm reviewed a…
A: Given Data National mean=900000
Q: Consider a set of ordered data that has n=32 data points: х1, х2, ..., х31, х32. a) Find the…
A: Given data size: 32 The data is ordered; x1, x2,.....,x32 a) To find percentile of given data…
Q: Please answer this in a written format so that it is readable! Thank you! The average number of red…
A: given the mean and standard deviation for the number of red blood cells in humans as the z score…
Q: Do twenty-year-olds have fewer cavities? The data show the results of a survey of 16…
A: Given : Claim : The population mean number of cavities for twenty-year-olds is less than 4.
Q: 5. The lengths of walleye in a lake are normally distributed with mean 21 inches and standard…
A:
Q: d) The weight of 45 watermelons from a farm is shown below. Weight Frequency 11-15 4 16-20 8 21-25…
A: Weight Frequency (f) Mid value (x) Class boundaries f⋅x c.f 11-15 4 13 10.5-15.5 52 4 16-20…
Q: The speeds of cars travelling on a certain highway are normally distributed with mean 98 km/h and…
A: As per bartleby guideline exapert have to answer first question only.
Q: The average amount of rainfall in Puerto Rico last month was 3.5 inches, according to the National…
A: Given information Mean µ = 3.5 inches Standard deviation σ = 0.8 inches
Q: ) For distribution A, M = 20 and SD = 7. For distribution B, the M = 23 and SD = 2. In which…
A: GivenFor distribution A Mean(M)=20standard deviation(SD) = 7For distribution BMean(M)=23stdandard…
Q: The length of an injection- molded plastic case that holds magnetic tape is normally distributed…
A:
Q: For the given data, the x = inches (round your response to four decimal places).
A: Twelve samples with sample mean and range are given.
Q: The average number of acres burned by forest and range fires in large new mexico country is 4,300…
A: According to the given information, we have Mean = 4300 Standard deviation = 750 The distribution is…
Q: A research is conducted to investigate the prevalence of airborne bacteria in carpeted and…
A: The confidence interval formula to find out the ratio of two population variances is defined as…
Q: 2. ……are used for numerical data consisting of paired observations taken from two numerical…
A: We know that scatter plot is a plot used to display values for typically two variables for a set of…
Q: The accounting department at Weston Materials, Inc., a national manufacturter of unattached garages,…
A:
Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 4. Do…
A: Given data, 4, 3, 6, 6, 4, 3, 3, 3, 4, 5, 4, 4, 6, 3, 3 Sample mean: Sample mean for the given data…
Q: A company gave their employees a survey to determine the average number of hours they sleep on a…
A: Here Given Mean : μ=50 hoursσ=6 hours X=Employees sleep on week in hour It is Normally distribution.…
Q: Complete parts a and b below. Assume that a similar boat is loaded with 60 passengers, and assume…
A: Given that , 60 passengers are loaded i.e. n=60, and mean weight and standard deviation between…
Q: Average temperatures in MMáy in a certain city are normatly distributed with a mean ef 70 degrees…
A: From the given information, Consider, X is the temperatures in May that follows normal distributed…
Q: For this study, we should use The null and alternative hypotheses would be: �0:…
A: as per guidelines i have calculated 3 subparts plz repost for remaining part ... The average number…
Q: he birth weights for full term (born between 37 and 43 weeks) singleton babies (not multiple birth,…
A: Solution: Let X be the birth weight for full term singleton babies is normally distributed with mean…
Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 9. Do…
A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: The number of small air bubbles per 3 feet by 3 feet plastic sheet has a Poisson distribution with a…
A:
Q: The mean gas mileage for cars driven by the students at Chillville High Schoo is 28.0 miles per…
A: Normal distribution is continuous distribution which has many real life applications. Standard…
Q: The clerks of the traffic courts at three neighboring towns keep track of the number ot miles by…
A: 8. From the given information, Town Mean mph Over Limit Standard Deviation Over Limit…
Q: The birth weights for full term (born between 37 and 43 weeks) singleton babies (not multiple birth,…
A: Given data,μ=3500σ=600P(X>4540)=?
Q: 2865 3350 3835 Suppose the birth weights of full-term babies are normally distributed with mean 3350…
A: a) The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…
Q: The U.S. Census Bureau computes quarterly vacancy and homeownership rates by state and metropolitan…
A: Using Excel>data>data analysis>ANOVA>One-way ANOVA, we get: Since, P-value < 0.05 OR…
Q: The heights of 1,000 college students are normally distributed about a mean value of 170…
A: Given, N=1000 μ=170 σ=7.2 Normal distribution: Z=x-μσ
Q: the temperature of a coffee cup is 185.3 degrees, is it a discrete or a continuos data set?
A: first we understooddefination of Discrete random variable→discrete random variable has a countable…
Q: 2. Assume that IQ scores follow a Normal distribution with µ=100 and o=16. Using our IQR rule for…
A: Given, IQ score follows normal distribution with mean 100 and standard deviation 16.…
Q: Find the probability that the mean for 20 randomly selected distances is greater than 195.70 cm.
A: Given that. X~N( μ , ?) μ=197.5 , ?=8.9 Z-score =( x - μ )/?
Q: The table below shows the results from the specific gravity (S.G.) test performed in a soil…
A: SG=25 20 samples of sand To find:- The number of samples have S.G. less than 2.65. Specific…
Q: 7. Suppose the length of newborn babies in a community is normally distributed with an average of 50…
A: We have given that Mean=mu=50 Standard deviation=sigma=3 X~Normal(mu=50,sigma=3)
Q: Suppose the length of the newborn babies in a community is normally distributed with an average of…
A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…
Q: A boat capsized and sank in a lake. Based on assumption of mean weight of 131 lb, the boat was rated…
A: Let "M" be the mean weight of passengers.
Q: Any quantity that is computed from a sample is called
A: Sample : It is subset of population
The number of small air bubbles per 3 feet by 3 feet plastic sheet has a Poisson distribution with a mean number of 3.5 per sheet. What percent of these sheets have no air bubbles?
Step by step
Solved in 2 steps
- The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8. Do twenty-year-olds have a different number of cavities? The data show the results of a survey of 13 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 11, 7, 6, 12, 8, 9, 10, 11, 10, 6, 8, 10, 10 What can be concluded at the αα = 0.10 level of significance? The null and alternative hypotheses would be: Please provide number H0:H0: mean = __?__ H1:H1: mean not equal to __?__ The test statistic t = __?__(please show your answer to 3 decimal places.) The p-value = __?__ (Please show your answer to 4 decimal places.)The length of fish were measured at 3 different lakes. Is there evidence to suggest that the average length is not the same at all 3 locations? Lake 1: 3.5, 4.2, 2.1, 3.2, 1.7 Lake 2: 5.1, 6.2, 5.3,4.1 Lake 3: 5.6, 7.1, 6.4, 7.1, 6.4 What is your conclusion? There is not evidence that the mean length at one of the lakes is different then the others. There is evidence hat the mean length at a least one lake is different then the others.The mean age of a random sample of 70 adults is 55yrs with SD=7yrs •Find a 95%CI, 90% & a 99%
- Suppose that the City of Chicago is interested in potential revenues if they introduce a tolling station near O'Hare. Further suppose that the average time between cars is only 3.0 seconds; what is the average value of the distribution?The average number of cavities that thirty-year-old Americans have had in their lifetimes is 5. Do twenty year-olds have fewer cavities? The data show the results of a survey of 15 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 3, 4, 4, 4, 5, 5, 6, 4, 5, 4, 3, 5, 6, 5, 3 What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v|| Select an answer H: ?v Select an answer v c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly less than 5 at o =- 0.05, so there is sufficient evidence to conclude that the population mean number of cavities for…1) The speed of 100 cars was measured on a road with a speed limit of 90 km/h. The data was found to be approximately normal with a mean of 88 km/ h and standard deviation of 1.0km/h. a) How many cars were driving at a speed between 87km/h and 89km/h? b) How many vehicles were fined between 90km/h and 91km/h for exceeding the speed limit?
- For this project you have to do the following: 1) list five different things that are normally distributed. Examples that you can't use since I came up with them: Shoe size, middle finger length, oxygen level, electricity bill, wait times on line to pay at target. You must give the website where you found that they are normal for each one of them. 2) measure yourself and use the normal distribution to find out what percent of the population is less than use. What this means is that for one of the five things in 1) you need to make sure that you can find the mean and standard deviation. So an example would be: I found the oxygen level mean and standard deviation to be 98.3 and 1.1. My oxygen level is 98.9. Using the normal distribution calculator I found that 69.3% of the population has a lower measure of that.A factory manager knows that the pieces produced by their machine will have lengths which are normally distributed, with mean 10 cm and standard deviation 4 mm. If this is true, then 95% of the pieces produced will have lengths between What?Suppose the distribution of heights of a group of 300 children is normal, with a mean of 150 centimeters and a standard deviation of 12 centimeters. About how many of these children are taller than 162 centimeters? children
- A distribution consists of three components with frequencies 45, 40 and 65, having the their mean 2, 2.5, and 2. Show that the mean of the combined distribution is 2.13 approximately.According to the records of an electric company serving the Boston area, the mean electric consumption for all households during winter is 1650 kilowatt-hours per month. Assume that the monthly electric consumptions during winter by all households in this area have a normal distribution with a mean of 1650 kilowatt-hours and a standard deviation of 320 kilowatt-hours. What percentage of the households in this area have a monthly electric consumption of 1838 to 1940 kilowatt-hours? Round your answer to two decimal places. P= Enter your answer in accordance to the question statement %what is the population of focus? a reasearch is being done to determine canopy spread of a type of MATURE tree in a given location. the location has 40,000 of these and the mature trees are estimated at 10feet tall. the research collected spread from 1000 random mature trees.