The weight of male contestants is normally distributed with a mean of 90 kg and a standard deviation of 8 kg. If 35% of contestants satisfy a maximum weight requirement for police officers, what is the maximum weight requirement? Draw the graph
Q: These data represent the area in square miles of major islands in the Caribbean Sea and the…
A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 150 lb, the boat was…
A: We have given that, Weights of people are normally distributed with mean(Mu) = 177.7 and standard…
Q: In a Statistics course the professor uses the following grading policy: the bottom 5% of students…
A: Given that b .Find the probability that a randomly selected student gets an 80 or better? c.…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 134 lb, the boat was…
A:
Q: In any symmetrical distribution, what percentile would be associated with the mean value? What…
A: For a symmetric distribution, often the mean, median, and mode all occur at the same point.…
Q: As part of the National Health and Nutrition Examination Survey, subjects were asked how long they…
A: The question is about descriptive stats Given : Data : To find : Value of mean
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 149 lb, the boat was…
A: given data n = 60μ = 180.4σ = 40.2P( overload) = P(x¯>149) = ?
Q: a. The mean, median and mode b. The standard deviation and variance.
A: Given: number of observation, n=10 values for fuel economy 40 33 32 30 27 29 27 23 21 10
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 147 lb, the boat was…
A: GivenThe data is as follows:Population mean, lbPopulation standard deviation, lb
Q: Clothing companies find it unprofitable to service every tall or very short adult female. It was…
A: The data is as follows: Population mean, μ=70.2 inches Population sd, σ=4.2 inches
Q: Twenty-five percent of commercial airline accidents are caused by bad weather. If 300 commercial…
A: The mean of the binomial random variable obtained by the formula μ=np, where (n) is the number of…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 138 lb, the boat was…
A: Given, A boat capsized and sank in a lake. Based on an assumption of a mean weight of 138 lb, the…
Q: What is the center of {0.1, 0.3, 0.02, 0.09, 0.4, 0.05, 0.26}? [ Select ] A. What is the mean of the…
A: Dear student since the policy is to answer first 3 subparts so kindly repost the other.
Q: Suppose the distribution of yearly car repairs cost has a normal distribution with a mean of $400…
A: Determine the mean repair cost that bounds the top 18% of car repair costs. The mean repair cost…
Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated.
A: Population standard deviation, σ =3 inches Sample size n=6
Q: In which distribution does the amount of data below 20.5 most closely match that above 30.5? Please…
A: Given graphs with cumulative frequency and cumulative percentages. For The data below 20.5 to match…
Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…
A: The given situation follows binomial distribution. The proportion of people born in United States…
Q: The heights (to the nearest inch) of 30 males are shown below. Construct a frequency distribution…
A: Given that -
Q: At what percentile is the child's reading level (round final answer to one decimal place). b.…
A:
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 146 lb, the boat was…
A:
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 147 lb, the boat was…
A:
Q: A researcher counted the number of Saturday calls to emergency dispatch for a year. The data set is…
A: The normal distribution has bell shape curve which is symmetric about the mean of the distribution.…
Q: The frequency distribution for the commission earned (in dollars) by salespeople employed at several…
A:
Q: A group of students in a math class were surveyed and asked: “How many hours each week do you study…
A: Solution
Q: The manager of a local gym has determined that the length of time patrons spend at the gym is a…
A:
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: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 143 lb, the boat was…
A: We have to find given probability.
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 137 lb, the boat was…
A: It is given that, The population mean is 179.1 lb. The population standard deviation is 38.3 lb. We…
Q: Nikki wishes to test the hypothesis that bird feeders can affect the mean mass of birds in the area…
A: sample mean = xbar = Total/n =(4.2+3.9+3.6+3.5+3.9+3.8+3.8+4.1+3.9+3.8+3.2+3.4)/12 =3.7583
Q: The following are two data sets on car dealership sales at two dealerships. Which data set has the…
A: The standard deviation formula: standard dveiation = ∑xi-x2n-1Here,Xi= sample valuesx = sample meann…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 138 Ib, the boat was…
A: The standard error of the sampling distribution is inversely proportional to the sample size. The…
Q: A sample data set has a mean of 72 and a standard deviation of 12. Determine whether each of the…
A:
Q: According to Our World in Data, male heights follow a normal distribution with µ =178.4 cm and o=…
A:
Q: university health officials are interested in determining the average number of hours of sleep…
A: 1. Number of students selected = 200
Q: Refer to exercise 30 suppose that the true mean file size of the music and video files on the tablet…
A: Central Limit Theorem: Central Limit Theorem states that if you have a population with…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 130 Ib, the boat was…
A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: Tiffany is a manager who needs to fire the worst performing 3% of employees. At her organization,…
A: Given that, Employee performance is a normally distributed variable. Tiffany is a manager who needs…
Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 133 Ib, the boat was…
A: Let X denote the weight of passengers on boat (in lb). (a) We have to find the following probability…
Q: tion system. Find the mean and variance of the total amount spent by the four sampled homes. Give a…
A:
Q: because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628;…
A: Here is the solution
Q: If 10 men in a company have an average annual salary of GH¢360,000 and 23 women have an average…
A: The mean is the sum of a collection of numbers divided by the count of numbers in the collection. 10…
. The weight of male contestants is
kg and a standard deviation of 8 kg. If 35% of contestants satisfy a
maximum weight requirement for police officers, what is the maximum
weight requirement? Draw the graph.
Step by step
Solved in 2 steps with 2 images
- a researcher has collected the following sample data; 3,5,12,3,2. the mean of the sample is 5. the interquartile range is?Construct a quantile graph. Explain why or why not the data set provided has a normal distribution: 5.5, 6.0, 6.4, 5.7, 7.5, 4.5, 5.5, 5.6, 6.5, 6.0, 5.0, and 6.0. include the graph and response.The histogram (click the attacthed photo to view) shows the distribution of hurricanes that have hit a country from 1851 through 2015, where 1 is the weakest level and 5 is the strongest level. A) The mean is? B) The variance is? C)The standard deviation is?
- A boat capsized and sank in a lake. Based on an assumption of a mean weight of 142 lb, the boat was rated to carry 60 passengers (so the load limit was 8,520 lb). After the boat sank, the assumed mean weight for similar boats was changed from 142 lb to 171 lb. Complete parts a and b below. a. Assume that a similar boat is loaded with 60 passengers, and assume that the weights of people are normally distributed with a mean of 178.5 lb and a standard deviation of 36.9 lb. Find the probability that the boat is overloaded because the 60 passengers have a mean weight greater than 142 lb. The probability is 1.000. (Round to four decimal places as needed.) C.. b. The boat was later rated to carry only 13 passengers, and the load limit was changed to 2,223 lb. Find the probability that the boat is overloaded because the mean weight of the passengers is greater than 171 (so that their total weight is greater than the maximum capacity of 2,223 lb). The probability is. (Round to four decimal…a) Represent data by using Cumulative Frequency Polygon. b) Find Population Standard Deviation.A boat capsized and sank in a lake. Based on an assumption of a mean weight of 135 lb, the boat was rated to carry 70 passengers (so the load limit was 9,450 Ib). After the boat sank, the assumed mean weight for similar boats was changed from 135 lb to 175 lb. Complete parts a and b below. a. Assume that similar boat is loaded with 70 passengers, and assume that the weights of people are normally distributed with a mean of 181.9 Ib and a standard deviation of 35.1 Ib. Find the probability that the boat is overloaded because the 70 passengers have a mean weight greater than 135 Ib. The probability is (Round to four decimal places as needed.) b. The boat was later rated to carry only 13 passengers, and the load limit was changed to 2,275 lb. Find the probability that the boat is overloaded because the mean weight of the passengers is greater than 175 (so that their total weight is greater than the maximum capacity of 2,275 Ib). The probability is. (Round to four decimal places as…
- b. As a basketball player, Rylee scored the following in her last 10 games: 34, 21, 21, 3, 12, 22, 21, 33, 15, 19. Which measure of central tendency would be best? Create a distribution graph. Discuss the data points on the x-axis and y-axis. Discuss the measures of central tendency.Use a calculator or computer software to generate a normal quantile plot for the data in the accompanying table. Then determine whether the data come from a normally distributed population. Click the icon to view the data set. O A. OB. В. OC. OC. 3.00- 2.00- 3.00- 3.00- 2.00- 1.00- 0.00- -1.00- -2.00- -3.00+ 2.00- 1.00- 0.00- -1.00- -2.00-. -3.00- 1.00- 0.00- -1.00- -2.00- -3.00- O 100 200 300 400 500 X Value O 100 200 300 400 500 X Value O 100 200 300 400 500 i Data Table - X Determine whether the data come from a normally distributed population. Choose the corred O A. The distribution is normal. The points are not reasonably close to a straight line and O B. The distribution is not normal. The points are not reasonably close to a straight line. Space Flight Durations (hours) D 350 200 100 300 200 350 250 200 O C. The distribution is normal. The points show a systematic pattern that is not a straigl 100 400 450 200 300 100 450 150 50 400 O D. The distribution is not normal. The points…Use the frequency distribution from Exercise 14 in Section 2-1 to construct a histogram. Does it appear to be the graph of data from a population with a normal distribution?
- C8. Individuals with higher levels of education tend to delay parenting, having children at an older age in comparison with individuals with lower levels of education. We examine this relationship based on GSS 2018 data. In the following table, the mean, standard deviation, and variance for respondent's age when first child was born (AGEKDBRN) are reported for five categories (DEGREE). a. Identify the level of measurement for DEGREE and AGEKDBRN. b. Describe the relationship between respondent degree and age when first child was born. High School Some Less Than High School Bachelor's Graduate College Degree Degree Mean 21.33 23.08 24.83 27.44 28.59 5.055 5.498 4.581 5.314 5.446 Standard deviation Variance 25.556 30.232 20.984 28.234 29.654The pH of a liquid is a measure of its acidity or alkalinity. Pure water has a pH of 7, which is neutral. Solutions with a pH less than 7 are acidic while solutions with a pH greater than 7 or basic or alkaline. A random sample of lakes in Florida was taken and the pH was recorded for each lake. Summary statistics are given below. The primary question to answer is: "Is there evidence to indicate the mean pH of lakes in Florida is different than the neutral value of 7?" min 01 median Q3 max mean sd n missing 3.6 5.8 6.8 7.4 9.1 6.5906 1.2884 53 A 95% confidence interval for the mean pH level of all lakes in Florida is to be constructed. Fill in the blanks below with the correct values in the formula for this problem. Report all values to three decimal places. Use R Studio or a calculator to obtain the critical value. (Note: report the t-critical value immediately after the +/- sign and the standard error in the last set of parentheses.) 土(
