Statistics question and answers for October 24, 2023
- Q A 0 8340 OB 0 1685 OC 0 1922 OD 0 1660 variable fiind P Z 0 97 Round to four decimal places
- Q K It is a standard normal variable find the probability that z lies between 2 41 and 0 Round to four decimal places A 9 4920 B 0 4910 OC...
- Q A psychologist claims that more than 5 8 of the population suffers from professional problems due t extreme shyness Use p the true percentage of the population that suffers from...
- Q selected find the probability that the person is a man or a heavy smoker Round to three decima bits of a group of asthma sufferers If one of the 1156...
- Q Which summarizes the results of testing for a certain disease If one of the results is randomly selected what is the probably that it is a false negative test indicates...
- Q ade W Una test of agender selection technique results Considered of 254 baby girls 5 baby boys Based on this result what is the probability of a girl born to...
- Q Ho Beryllium exposure and disease status are independent H Beryllium exposure and disease status are not independent Part 1 4 Part 2 of 4 b Find the P value Round...
- Q academic standards Because of that you want to know if the variance in test scores among student athletes o is lower To find out you survey a random sample of...
- Q Can the FUN argument to apply be user defined O Yes No
- Q Which of the following commands computes the standard deviation of each column of a matrix A apply A 1 2 sd O apply A 1 sd apply A 2 sd...
- Q What is the error message given when attempting to perform arithmetic or comparison between matrices of different sizes O longer object length is not a multiple of shorter object length...
- Q Which of the following is not a possible output of calling nrow on a storage object 01 O 0 NULL
- Q Suppose one wants to matrix multiply a matrix A by a matrix B in R Which of the following conditions must be true Oncol A nrow A Oncol A ncol...
- Q When created using matrix are matrices filled by row by default O Yes O No
- Q Are matrices in R stored as vectors Yes No
- Q SEP Explain Phenomena How are human activities related to the changes in ocean composition observed near the Mauna Loa Observatory Construct an explanation using data from the graphs and the...
- Q boards rejected per batch is 5 7 with a variance of 1 4 The factory manager suspects that due to a change in the molding process the variance has increased...
- Q EST 1 OF FOURTH QUARTER 2022 2023 ONLY FOR JUNIORS say 1 An airline claims that there is 0 25 probability a randomly selected business traveler will check baggage An...
- Q 2 Suppose you spin a spinner with four equal sections red blue green and yellow two times a List all of the possible outcomes for spinning two times b Define...
- Q Question 15 of 32 worth 3 points Suppose you flip a fair coin 10 times Which of the following is NOT TRUE OA P tossing 4 heads P tossing 4...
- Q Part 3 of 5 Fill in the Blank worth 30 points Question 24 of 32 worth 4 points Save The evil geniuses behind Instagram Ads determine that the probability a...
- Q While the average professional soccer player is shorter than the average NFL football player the height of goalies in professional soccer leagues appears to be more comparable You wish to...
- Q Let x be a random variable representing the average daily calorie intake of an individual Let y be a random variable representing the weight of the same individual The following...
- Q Question 26 of 32 worth 4 points points Express all answers as decimals a If you roll an 10 sided die yes they do exist the probability of rolling a...
- Q Question 29 of 32 worth 6 points Save You wish to test the claim that the average cereal brand has over 8 grams of sugar In a sample of 50...
- Q Question 28 of 32 worth 4 points a How would you interpret a correlation coefficient of r 0 87 b How would you interpret a correlation coefficient of r 0...
- Q Question 30 of 32 worth 6 points Save In a random selection of 300 pirates 19 of them had bounties over five million dollars You wish to test the claim...
- Q Question 25 of 32 worth 4 points Save Medical schools usually require MCAT scores from the applicants Suppose MCAT test scores from a normal distribution with mean 470 points and...
- Q Question 23 of 32 worth 6 points The following set represents the price in thousands of 10 randomly selected homes in Hawaii 740 865 945 965 1050 860 980 965...
- Q Part 3 of 5 Fill in the Blank worth 30 points Question 22 of 32 worth 4 points Save The height of NBA players is normally distributed with an average...
- Q In a random sample of 950 individuals living in Honolulu 775 of them have had COVID 19 a What is the point estimate for the population proportion of individuals in...
- Q Which of the following values is the most reasonable correlation coefficient between the number of hou spent watching Netflix and the number of hours spent studying Assume that the more...
- Q Which one of the following claims could also be an alternative hypothesis if you were to conduct a hypothesis test A The claim that the average movie length is over...
- Q in a random selection of 1 000 college athletes 72 of them consumed 5 or more meals per day Wh the population A The number of meals consumed by all...
- Q Which of the following IS a possible confidence interval in estimating a population proportion OA 0 7 0 2 OB 0 11 0 33 OC 1 4 2 3 OD...
- Q Which one of the following linear regression equations indicates a positive correlation between the explanatory and response variables O A y 2 124x 4 3 B y 2124x 4 3...
- Q In which of the following situations is using a combination the appropriate counting technique A Counting the possibilities for a 1st 2nd and 3rd place winner in an upcoming Yu...
- Q Question 8 of 32 worth 2 points In hypothesis testing it is possible to reject the null hypothesis but accept the claim True False Review Chosl
- Q A correlation coefficient of r 0 7 or higher between two variables x and y implies that there is a causal relationship between x and y O True False Review...
- Q 4000 3000 2000 1000 0 1000 2000 3000 4000 5000 penny 1979 1980 1981 1982 1983 1984 5861 prophy 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 South...
- Q H 0 3 H o 3 This hypothesis test is a right tailed test Part 1 5 Part 2 of 5 Find the critical value Round the answer to three...
- Q Part 1 of 3 Compute the least squares regression line for predicting the price of milk from the price of eggs Round the slope and y intercept to at least...
- Q a Construct a scatterplot of the weight y versus the height x Weight pounds 240 235 230 225 Question Attempt 1 of 3 215
- Q 1 13 1 16 1 19 1 14 1 17 1 17 1 28 1 26 1 28 Send data to Excel Part 0 3 Part 1 of 3 3...
- Q The price of milk would differ by 4 Correct Answer The price of milk would differ by 0 09 Part 2 3 Part 3 of 3 Predict the price of...
- Q The coach of a college baseball team is comparing the wins of two rival teams in the division The number of wins per season for each team is shown in...
- Q b Compute the correlation coefficient between the height and weight of the quarterbacks Round the answer to at least three decimal places The correlation coefficient is r 0 6995 Part...
- Q Question 6 of 14 1 point Question Attempt 1 of 3 where do you liver the 0 3 Census Buread computed the proportion of residents who lived in caer random...
- Q Part 1 4 Part 2 of 4 205 70 71 72 73 The correlation coefficient is r 74 75 76 Height inches 77 S 78 79 80 b Compute the...
- Q Beryllium disease Beryllium is an extremely lightweight metal that is used in many industries such as aerospace and electronics Long term exposure to beryllium can cause people to become sensitized...
- Q Name Collin Klein E J Manuel Ryan Nassib Sean Renfree Geno Smith Brad Sorensen James Vandenberg Tyler Wilson Send data to Excel Part 0 4 Part 1 of 4 Height...
- Q Part 1721 Part 3 of 4 Part 2 4 Check Answer es must be negative No the x values must be positive millimeters hpt 2 of 3 X Owncg8Tof4a5q5fmgWG31RYRVbH21NdTHW5zj49clvdbn9K4w If...
- Q Spring Semester 2023 Exam IV SHOW ENOUGH OF YOUR WORK SO THAT METHODS USED CAN BE EVALUAS 1 12 Points Airline companies are not only interested in the average fly...
- Q standard deviation of 12 4 m The company recently updated the devices which the lead engineer suspects has caused the standard deviation G to decrease He measures the heights at...
- Q tion 1 point s possible In a study of pulse rates of men a simple random sample of 151 men results in a standard deviation of 10 9 beats per...
- Q This question 1 point s possible In a study of pulse rates of men a simple random sample of 151 men results in a standard deviation of 10 9 beats...
- Q releasing the reserve parachute at a mean height of 320 0 m with a standard deviation of 12 4 m The company recently updated the devices which the lead engineer...
- Q A bottle contains a label stating that it contains Spring Valley pills with 500 mg of vitamin C and another bottle contains a label stating that it contains Merck pills...
- Q This question 1 point s possible Use the results from a survey of a simple random sample of 1259 adults Among the 1259 respondents 73 rated themselves as above average...
- Q A data set includes weights in grams of 34 Reese s Peanut Butter Cup Miniatures The accompanying Statdisk display shows results from using all 34 weights to test the claim...
- Q a Why does margin of error have no relevance for confidence interval estimates of a or a b What is wrong with expressing the confidence interval of 6 6 bpm...
- Q What does the notation zu indicate Za The expression 7 denotes the z score with an area of g
- Q Using the lengths in chest sizes in and weights lb of bears from data set the resulting regression equation is Weight 274 0 426 Length 12 1 Chest Size The...
- Q Which of the following statements are true concerning the mean of the differences between two dependent samples matched pairs Select all that apply A If one wants to use a...
- Q What is the difference between the following two regression equations y Po B x Choose the correct answer below OA The first equation is for sample data the second equation...
- Q Determine whether the following procedure results in a binomial distribution or a distribution that can be treated as binomial by applying the 5 guideline for cumbersome calculations If it is...
- Q When randomly selecting an adult A denotes the event of selecting someone with blue eyes What do P A and P A represent P A represents the P A represents...
- Q In a horse race a particular bet is won if you selected the three horses that finish first second and third and they can be selected in any order A...
- Q This question 1 point s possible Listed below are the ages of 11 players randomly selected from the roster of a championship sports team Find the a mean b median...
- Q Find the probability that when a couple has three children at least one of them is a girl Assume that boys and girls are equally likely The probability is that...
- Q Annual incomes of statistics students are known to have a distribution that is skewed to the right instead of being normally distributed Assume that we collect a random sample of...
- Q Given a data set is normally distributed with a mean of 7 7 and a standard deviation of 2 a 2 and is normally distributed what would the probability that...
- Q Mendel s Theory According to Mendel s theory if tall and colorful plants are crossed with short and colorless plants the 3 corresponding probabilities are 16 for tall and colorful...
- Q Is the data normally distributed If so estimate the mean 00 242 6044 0 2 4 66966 8 6 8 10 12 Yes z 13 2 Yes 10 7 Yes...
- Q You measure 36 watermelons weights and find they have a mean weight of 41 ounces Assume the population standard deviation is 11 2 ounces Based on this construct a 90...
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