Mathematics > EXAM > MATH 221 Week 3 Quiz: Statistics for Decision-Making (v5) | Download for best GRADE (All)

MATH 221 Week 3 Quiz: Statistics for Decision-Making (v5) | Download for best GRADE

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MATH 221 Week 3 Quiz: Statistics for Decision-Making (v5) Question: (CO 1) A survey of 385 people who like wild sweaters found that 74% had a wild holiday sweater. What is the population and what is... the sample? Question: (CO 1) The measurements of 100 products from the assembly line show that 99% are correct. Is this percentage a parameter or a statistic and why? Question: (CO 1) Classify the data of the number of customers at a restaurant. Question: (CO 1) The data set that lists the runs scored at each of the weekend’s baseball games would … classified as what type of data? Question: (CO 1) A data set that includes the shows on a station during the day would … classified as what type of data? Question: (CO 1) What type of data collection might … best to estimate the amount of time individuals spend socializing? Question: (CO 1) What type of data collection might … best to study how voters might decide an upcoming ballot issue? Question: (CO 1) You need to study the satisfaction of customers of a specific restaurant. You decide to randomly select a few tables and talk to everyone at those … tables. This would most closely describe which type of sampling technique? Question: (CO 1) Which of the following graphs would be a histogram? Question: (CO 1) In a normally distributed data set of how long customers stay in your store, the mean is 44.8 minutes and the standard deviation is 2.6 minutes. Within what range would you expect 95% of your customers to stay in your store? Question: (CO 1) Which of the following graphs would … normally distributed? Question: (CO 1) In a normally distributed data set with a mean of 19 and a standard deviation of 2.6, what percentage of the data would be between 13.8 and 24.2? Question: (CO 1) Which of the following would be the standard deviation for this sample data set: 5, 7, 6, 9, 6, 4, 4, 6, 5, 2, 5? Question: (CO 1) What would be the mean of this data set: 8, 9, 7, 451, 7, 1, 5, 3, 4? Question: (CO 1) A city wants to know how many cars come to a complete stop at the stop signs in downtown. What type of study would be best suited to make this determination? Question: (CO 1) To gather information on customer satisfaction, a researcher goes into each store and interviews six randomly… customers at each store. This sampling technique is … : Question: (CO 1) What is the standard deviation and its meaning in the sample of customer ages? 45, 76, 30, 22, 51, 40, 63, 66, 27 Question: (CO 2) A random selection from a deck of cards selects one card. What is the probability of selecting an ace? Question: (CO 2) What is the sample space to responses to a question whose answers are Yes or No, along with a question on location with possible answers of North, South, East, or West? Question: (CO 2) Consider the table below. What is the probability that the next person asked has no cats? Question: (CO 2) Consider the table below. What is the probability that the next person chosen will be in the 50-59 or 60-69 age groups? Question: (CO 2) Based on past experience, it is estimated that a restaurant will serve 122 guests on a weekday evening. This is an example of which type of probability? Question: (CO 2) Consider the table below. What is P(50-69’)? Question: (CO 2) You are selling your product at a three-day event. Each day, there is a 60% chance that you will make money. What is the probability that you will make money on the first day and lose money on the next two days? Question: (CO 2) Consider the table below. Find the probability that a randomly … location is in an urban location, … that it is operating a loss. Question: (CO 2) Consider the table below. Find the probability that a randomly … product is defective, … that it is from the South production facility. Question: (CO 2) Classify these events. Selecting a king from a deck of cards, replacing it and selecting a queen from the same deck. These events would be considered: Question: (CO 2) Classify these events. Some businesses have large stores and some businesses have large parking lots. These events would be considered: Question: (CO 2) In a survey of 320 customers, 58 say that service is poor. You select two customers without replacement to get more information on their satisfaction. What is the probability that both say service is poor? Question: (CO 2) Randomly select a customer that purchases tofu. Randomly select a customer that purchases chicken. Are these events mutually exclusive? [Show More]

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