Statistics question and answers for October 10, 2023
- Q Condition improved I No change N Condition worse W Total c P I Assume that a participant is selected at random Let M be the event that the participant used...
- Q 0 6 pts 100 weights of newborn babies are normally distributed with a mean of 8 5 pounds and a standard tion of 2 pounds A random sample of 25...
- Q Question 14 A half hour daytime tv show has an average o of commercials follows a normal distribution a Find the percent of half hour daytime tv sh nd answer...
- Q Find the exact probability from the z table a P Z 1 b P 0 5 Z 1 c P Z 0 d P Z 0 5 e PIZ 0...
- Q uestion 2 nsider a normal distribut
- Q How smart is your phone A random sample 169 385 329 249 349 199 135 Alle 269 149
- Q If a card is drawn from a deck of 52 playing cards then what is the probabiltiy of getting an Red or a Queen
- Q All of the possibilities for his schedule are shown in the tree diagram below Anatomy Statistics Psychology Economics Sociology Biology Psychology Economics Sociolc What is the probability that his social...
- Q Probability Scores 0 1 3 7 8 13 14 0 02 0 15 0 05 0 02 0 09 0 4 0 27 Find the expected value of the above...
- Q Ignoring twins and other multiple births assume babies born at a hospital are independent events with the probability that a baby is a boy and the probability that a baby...
- Q Suppose that we ve decided to test Clara who works at the Psychic Center to see if she really has psychic abilities While talking to her on the phone we...
- Q Car inspection Of all the registered automobiles in a city 11 fail the emissions test Fourteen automobiles are selected at random to under an emissions test Round the answers to...
- Q Suppose a simple random sample of size n 12 is obtained from a population with 68 and 16 a What must be true regarding the distribution of the population in...
- Q The workers union at a certain university is quite strong About 96 of all workers employed by the university belong to the workers union Recently the workers went on strike...
- Q At a deli counter there are sandwiches with meat and 5 vegetarian sandwiches Bob is at the counter buying sandwiches for a picnic In how many ways can he choose...
- Q A catering service offers 12 appetizers 11 main courses and 5 desserts A customer is to select 10 appetizers 9 main courses and 2 desserts for a banquet In how...
- Q e graph shows the age of students and the amount of daily study time they generally have in sell Daily Study Time minutes 11 What is the most likely 60...
- Q CYU 5 2b Johnny has ret d to his favorite ice cream shop which serves 24 flavors 17 How many different three scoop bowls of ice cream can he order...
- Q If necessary consult a list of formulas a A certain committee consists of 15 people From the committee a president a vice president a secretary and a treasurer are to...
- Q A toy company is going to issue new ID codes to its employees Each code will have one letter followed by five digits The digits 2 and 6 will not...
- Q Historically 2 percent of the stray dogs in Southfield are unlicensed On a randomly chosen day the Southfield city animal control officer picks up seven stray dogs What is the...
- Q The coefficient of variation for a Poisson distribution with A 5 is Multiple Choice O O 35 2 percent 31 1 percent 58 9 percent 44 7 percent
- Q Based on experience 60 percent of the women who request a pregnancy test at a certain clinic are actually pregnant In a random sample of 12 women what is the...
- Q Suppose X is binomially distributed with n 12 and 20 The probability that X will be less than or equal to 3 is Multiple Choice O O O 5584 7638...
- Q In Quebec 90 percent of the population subscribes to the Roman Catholic religion In a random sample of eight Quebecois find the probability that the sample contains at least five...
- Q If X is a discrete uniform random variable ranging from one to eight find P X 6 Multiple Choice O O O 6250 5000 3750 7500
- Q A charity raffle prize is 1 000 The charity sells 4 000 raffle tickets One winner will be selected at random At what ticket price would a ticket buyer expect...
- Q Fish Weights The data in Table 5 give the average weights of pike for certain lengths Use 4 decimal places in all answers Table 5 Pike Length in Weight oz...
- Q If a school district takes a random sample of 63 Math SAT scores and finds that the average is 483 and knowing that the population standard deviation of Math SAT...
- Q n and Which of the following values could not O A 1 OB 1 032
- Q nd ven a set of data and a correspondi
- Q n and Two variables have a positive linear co
- Q Discuss the difference between r and p Choose the correct answers below represents the o represents the Question critical value for the correlation sample correlation coefficient
- Q A bus comes by every 11 minutes The times from when a person arives at the busstop until the bus arrives follows a Uniform distribution from 0 to 11 minutes...
- Q The uniform distribution of a random variable X is given in the figure below 1 2 From the figure what is P X 0 54
- Q als Questi ind the critical value z necessa c 0 96
- Q A normal distribution has a mean of 126 and a standard deviation of 4 Find the z score for a data value of 119 Round to two decimal places
- Q K Assume that the proba one year term life insu
- Q Question A student is taking a standardized each correct answer Questions le question and the student is penal
- Q A pizza chain wants to send codes for 2 off a large pizza to the subscribers of its e mail list Each coupon code will have three letters followed by...
- Q Solve the given initial value problem y 4y 4y 5 x e 2x y 0 4 y 0 7 2x y x e 4 x 5x 3 X 2 6...
- Q esting Question 13 7 1 47 Part 1 of 3 Determine whether the claim stated below represent test is performed how should you interpret a decisio null hypothesis A researcher...
- Q Suppose we want to choose 5 colors without replacement from 8 distinct colors If necessary consult a list of formulas a How many ways can this be done if the...
- Q Mancini s Pizzeria sells four types of pizza crust Last week the owner tracked the number sold of each type and this is what he found Type of Crust Number...
- Q According to a study conducted in one city 28 of adults in the city have credit card debts of more than 2000 A simple random sample of n 200 adults...
- Q The U S housing market estimates that 31 of all homes purchased in 2019 were considered investment properties If a sample of 800 homes sold in 2019 is obtained what...
- Q Determine pand o from the given parameters of the population and the sample size Round the answer to three X decimal places where appropriate 33 o 36 n 36 OA...
- Q To assess attitudes towards issues that affect the residents of a village the village randomly chose 800 families to participate in a survey of life attitudes The village received 628...
- Q are as always subject to the Code of Co seriously on 32 an appropriate response value of E the margin of error for c
- Q Question 34 Provide an appropriate response Suppose you want to test the claim that u H of significance of a 0 01 when should you reje
- Q ation are normally distributed with a mean of 138 and a standard deviation of 2 Find the mean and standard error of the mean for this sampling distribution when using...
- Q Question 23 Provide an appropriate response Us ormally distribut
- Q Provide an appropriate response Assume that the random variable X is normally distributed with mean 90 and standard deviation 12 Compute the probability P 57 X 105 O 0 7888...
- Q Use the standard normal distribution to find P 2 25 z 0
- Q An ordinary fair coin is tossed 3 times Outcomes are thus triples of heads h and tails t which we write hth ttt etc For each outcome let w be...
- Q EV If necessary consult a list of formulas 11 4 0 C 0 4P3 11C4
- Q uestion cientist surveys 30 of the
- Q Question 11 Out of 200 households sampled 94 construct a 95 confidence interva living at home a Give your confidence interval in answers to three decimal places
- Q d Decide whether to reject or fail to reject the
- Q What is the difference between an ordinary opinion and an opinion in argument O An ordinary opinion is your personal view An opinion in argument must be supported by evidence...
- Q 4 When two dice are rolled let X and X be the face value of the 1 and the 2nd die respectively Find each of the following probabilities a P...
- Q For a standard normal distribution find P Z 2 94
- Q 5 Let P E 0 25 P F 0 6 and P EUF 0 7 a What is P En Fy b Are event E and event F mutually exclusive...
- Q A particular fruit s weights are normally distributed with a mean of 408 grams and a standard deviation of 19 grams If you pick one fruit at random what is...
- Q Intervals F Question 31 6 3 A Why is it necessary to check that np 5 an
- Q dule 5 fidence ewo K Question 22 6 2 3 Part 1 of 3 Use the standard normal distribution or th mean Justify your decision If neither dist
- Q tervals Question 2 6 1 Which statistic is the best unbiased estimato The best unbiased estimated for u is th
- Q 1 A sample of 200 persons is asked about their handedness A two way table of observed counts follows Men Women Left handed 11 9 Right handed 79 101 When...
- Q WLD Incorporated a national data collection agency estimates that 45 of all customers at home warehouse stores in the United States own their own home WLD also estimates that 32...
- Q C Exercise 7 10A Algo Accounting for uncollectible accounts percent of revenue allowance versus dire write off method LO 7 1 7 4 Joey s Bike Shop sells new and...
- Q 2 2 points 00 42 46 Skipped eBook GOD Hint 0 Files Grover Incorporated uses the allowance method to account for uncolle following four accounting events in Year 1 1...
- Q K Here are summary statistics for randomly selected weights
- Q Find the indicated limit Note that L H pital s rule may not apply or may require more than one application 2x 3x X 8 5x3 7 lim Select the...
- Q 1 2 3 4 Determine whether the given values can be looked upon as the values of a probability distribution of a random variable that can take on the values...
- Q Find the critical value Za 2 that corresponds to the confidence level 87 Za12 Rou to tuo docimal plagor ne pooded
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