Statistics question and answers for October 30, 2023
- Q deciding between two types of plans for vacation allowance for the employees of the company Unlimited and Traditional Hans wants to estimate for workers in the tech industry the difference...
- Q Test scores Scores on a statistics exam had a mean of 68 with a standard deviation of 6 Scores on a calculus exam had a mean of 59 with a...
- Q 3 Find the percentile corresponding to 4
- Q 13 I noticed that the prices of avocados increased lately A few weeks ago the price for one regular avocado was on average 0 89 Below are prices in for...
- Q 11 The chart below gives daily revenue of an ice cream truck and the temperature outside Sales 450 680 900 1000 560 120 34 120 33 Temp 70 85 88...
- Q Vaccinated Vaccinated Unvaccinated and and not boosted boosted 56 Positive 30 for COVID Negative for COVID 67 56 129 28
- Q Lunch break In a recent survey of 618 working Americans ages 25 34 the average weekly amount spent on lunch as 44 48 with standard deviation 3 09 The weekly...
- Q At one high school girls can run the 100 yard dash in an average of 15 2 seconds with a standard deviation of 0 9 second The times are very...
- Q 14 The following data was collected at the local clinic Vaccinated Vaccinated Unvaccinated and not boosted 56 and boosted 30 Positive for COVID Negative for COVID If one patient is...
- Q Assume a Poisson distribution Find the following probabilities a Let 6 0 find P X 2 b Let 0 6 find P X 1 c Let 6 0 find P...
- Q Given the probability distributions shown to the right complete the following parts a Compute the expected value for each distribution b Compute the standard deviation for each distribution c What...
- Q Multiple Choice Question O median Due in less than 8 hours The statistical value scientists frequently use to conclude that there is a statistically significant difference between observed results for...
- Q student is taking a multiple choice exam in which each question has two choices Assuming that she has no knowledge of the correct answers to any of the questions she...
- Q Assume a Poisson distribution with 4 9 Find the following probabilities a X 1 a P X 1 Round to four decimal places as needed b X 1 c X...
- Q You are trying to develop a strategy for investing in two different stocks The anticipated annual return for a 1 000 investment in each stock under four different economic conditions...
- Q Past records indicate that the probability of online retail orders that turn out to be fraudulent is 0 07 Suppose that on a given day 21 online retail orders are...
- Q Determine the mean and standard deviation of the variable X in each of the following binomial distributions a n 3 and 0 90 b n 5 and 0 70 c...
- Q The number of arrivals per minute at a bank located in the central business district of a large city was recorded over a period of 200 minutes with the results...
- Q wo new eight gam su just hit the market Ripped and Gainz She wants to estimate the difference between the mean amount of weight gained in kg by the people...
- Q As part of a staged rollout a new email client was installed on some of the computers of a major company s customer service representatives CSRs One of the company...
- Q On January 1 2017 the minimum wage for employers with 26 employees or more was 10 50 hour On January 1 2022 the minimum wage for employers with 26 employees...
- Q Multiple Choice Identify the choice that best completes the statement or answers the question 1 At the end of a 5K race runners are offered a donut or a banana...
- Q 10000 is invested at 27 compounded annually for 13 years How much will the investment be worth Round to the nearest cent
- Q performance of two of her stores Store 1 and Store 2 Though the two stores have been comparable in the past the owner has made several improvements to Store 1...
- Q two keyboard assembly processes Assembly times can vary considerably from worker to worker and the company decides to eliminate this effect by selecting workers at random and timing each worker...
- Q puse you are developing an Excel spreadsheet that finds a unit conversion You ente the following information B2 is the starting unit C2 is the new unit D2 is the...
- Q A coach for a sport picks the initial lineup of seven out of eleven players for a game The first two are always numb seven and eleven What is the...
- Q Jill is running for student council Fifty out of the eighty students in the class plan to vote for her If Jill randomly polls five students what is the probability...
- Q A restaurant offers dinner specials as shown in the menu You can order one item from each catego 12 Appetizer chips dip wings 08 stuffed mushrooms Main Course Beverage Dessert...
- Q According to Beef Magazine a group of calves can have a mean weight of 500 pounds with a standard deviation of pounds What is the probability that a calf weighs...
- Q Sam feels that students score better on math tests that take place on Fridays The school provides Sam with the school math test average but they cannot separate them by...
- Q A distribution has a mean of 550 and a standard deviation of 20 What is the probability that a score is less than 5302 Use the 68 95 99 7...
- Q Due to variations in the manufacturing process the machinery that fills cereal boxes cannot put exactly the same amount of cereal into each box The amount of cereal in a...
- Q A certain hormone called vasopressin is important in the functions of kidneys It is made of a protein molecule that consists of eight amino acids that are joined together in...
- Q There are four red five blue and eight green balls in a bag The balls are identical except for color If three balls are randomly selected what is the probability...
- Q 5 In a survey of 125 students 64 of them preferred to start the school day an hour later a Calculate the margin of error for this survey to the...
- Q Zoey was playing with a spinner that has 4 equal areas numbered 1 2 3 and 4 Zoey spun the spinner 50 times and 20 of the 50 spins came...
- Q You ve been selected to test password security for a company The company requires numerical passwords that are random permutations of three letters from the set A B C D...
- Q The sample space S a d e g Find the probability of the complement of a e g 00 25 O 0 50 0 75 0 33 E
- Q Be 4 Let X X2 X3 be independent random variables with common density Y f x ar a 1 I 1 1 n a max k n X nl Show...
- Q Sam works a job making 12 000 annually Social Security is withheld at 6 2 and Medicare is withheld at 1 45 How much FICA withholdings would there be in...
- Q The two way table shows if campers can or can t swim Boys Girls Total Can Swim Can t Swim Total 28 32 60 22 18 40 50 50 100...
- Q 34 The data given in the table below show some of the results of a study comparing the height ch a certain breed of dog based upon its mass Mass...
- Q 26 The number of people who attended a school s last six basketball games increased as the team neared the state sectional games The table below shows the data Game...
- Q 31 Santia is considering a vacation and has obtained high temperature data from the last two we for Miami and Los Angeles Miami Los Angeles 76 81 74 75 83...
- Q of tires Brand 1 and Brand 2 Tread wear can vary considerably depending on the type of car and the group is trying to eliminate this effect by installing the...
- Q You have performed a curve fit to a data set using nonlinear regression The standard error of the curve fit is 3 6 Assuming the data is normally distributed around...
- Q 16 4 points Life saving drug Penicillin is produced by the Penicillin fungus which is grown in a broth whose sugar content must be carefully controlled Several samples of broth...
- Q 15 4 points Government funding The following table presents the budget in millions of dollars for selected organizations that received U S government funding for arts and culture in both...
- Q Jose is a human resources executive for a technology company He is deciding between two types of plans for vacation allowance for the employees of the company Unlimited and Traditional...
- Q 14 6 points ES Growth spurt It is generally known that boys grow at an unusually fast rate between the ages of about 12 and 14 Following are heights in...
- Q Alexis works at a health care facility She has measured the hemoglobin levels of 400 people The data follows a normal distribution with a mean of 16 g dL and...
- Q 6 points Exercise Medical researchers conducted a study to determine whether treadmill exercise could improve the walking ability of patients suffering from claudication which is pain caused by insufficient blood...
- Q 11 5 points Strength of concrete The compressive strength in kilopascals was measured for concrete blocks from five different batches of concrete both three and six days after pouring The...
- Q 8 8 points Facebook A study showed that two years ago the mean time spent per visit to Facebook was 20 1 minutes Assume the standard deviation is G 7...
- Q 5 points 10 Cancer prevention Colonoscopy is a medical procedure that is designed to find and remove precancerous lesions in the colon before they become cancerous In a sample of...
- Q 9 5 points Contaminated water The concentration of benzene was measured in units of milligrams per liter for a simple random sample of seven specimens of untreated wastewater produced at...
- Q Chapter 8 6 points 7 Round your final answer to 2 digits after the decimal point Sound it out Phonics is an instructional method in which children are taught to...
- Q 13 6 points Pollution and altitude In a random sample of 346 cars driven at low altitudes 51 of them exceeded a standard of 11 grams of particulate pollution per...
- Q b What is the probability that the sample mean income is between 38 and 46 5 points
- Q The following table presents the manufacturer s suggested retail price in 1000s for 2013 base models and styles of BMW automobiles 48 0 93 5 44 1 57 7 89...
- Q 5 Big babies A public health organization reports that 20 of baby boys 6 8 months old in the United States weigh more than 20 pounds A sample of 17...
- Q Chapter 7 6 Give your final answers rounded to 4 digits after the decimal point Annual income The mean annual income for people in a certain city in thousands of...
- Q Chapter 3 3 A population has mean 30 and standard deviation o 7 a Find the Z score for a population value of 9 2 points b Find the z...
- Q 10 points Lottery Every day Jorge buys a lottery ticket Each ticket has a probability of 0 2 of winning a prize After five days what is the probability that...
- Q Determine whether the number described is a statistic or a parameter The average GPA of all freshmen at a certain college is 2 88
- Q Question 1 of 10 An ice cream shop s goal is to sell a mean of 45 ice cream cones per day In one week it sold the following numbers...
- Q Listed below are amounts of court fine revenue and salaries paid to the town justice All amount are in thousands of dollars and all of the towns are in Dutchess...
- Q What regression model does this data fit Determine the trendline based on this model 7234x 1 3 5 6 y 4 11 28 59 140 300
- Q minutes to charge a standard electric vehicle EV battery A firmware update for this type of supercharger was recently released but the update has received negative reviews from users A...
- Q Given the following events A likes spicy food B uses hot sauce How should you analyze the conditional probability P A B OFirst consider the people that use hot sauce...
- Q In a certain community it is known that 6 472 of the 8 713 total residents receive enough iron in their diets You belle that a lower proportion of residents...
- Q To determine if the heights of basketball players and the heights of football players is the same a researcher conducts a t test The researcher calculates the t value as...
- Q At a factory the probability that a pair of sunglasses will have a scratch on the lens is 0 03 A manager randomly selects a pair of sunglasses to inspect...
- Q For a flash drive there is a memory capacity of 2 GB 4 GB 8 GB and 16 GB and there are five colors What is the of selecting a...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!