Q1Listed below are the amounts of time (in months) that the employees of a restaurant have...
Q1Listed below are the amounts of time (in months) that the employees of a restaurant have been working at the restaurant. Find the mean. Round your answer to one more decimal place than is present in the original data values.
137, 95, 144, 115, 81, 51, 146,106, 50, 60, 16, 129
Q3The local Tupperware dealers earned these commissions last month. What was the median commission earned? Round your answer to the nearest cent.
457.37, 149.05, 203.59, 189.44, 117.65, 288.46, 277.59,194.52, 173.14, 280.83, 361.83
Q2 The amount of time (in hours) that Sam studied for an exam on each of the last five days is given below. Find the median study time. Round your answer to one more decimal place than is present in the original data values.
6.2, 9.9, 6, 8, 9.7
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Q1Listed below are the amounts of time (in months) that the
employees of a restaurant have...
Listed below are the amounts of time (in months) that the employees of a restaurant have...
Listed below are the amounts of time (in months) that the employees of a restaurant have been working at the restaurant. Find the standard deviation for given sample data. Round your answer to one more decimal place than is present in the original data. 2 3 9 14 21 42 55 84 101 122 42.5 months 44.9 months 41.4 months 43.6 months
Many fast-food restaurants have soft drink dispensers with preset amounts, so that when the operator merely...
Many fast-food restaurants have soft drink dispensers with preset amounts, so that when the operator merely pushes a button for the desired rink the cup is automatically filled. This method apparently saves time and seems to increase worker productivity. A researcher randomly selects 9 workers from a restaurant with automatic dispensers and 9 works from a restaurant with manual dispensers. At a 1% significance level, use the Mann-Whitney U Test to test whether workers with automatic dispensers are significantly more...
At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden...
At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, “You can average $83 a day in tips.” Assume the population of daily tips is normally distributed with a standard deviation of $4.07. Over the first 45 days she was employed at the restaurant, the mean daily amount of her tips was $84.86. At the 0.05 significance level, can Ms. Brigden conclude that her daily tips average more than $83? Compute the...
The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean...
The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean of the frequency distribution. Round your answer to one more decimal place than is present in the original data values. Speed (mph) / Cars ////////////////// 30-39 / 3 40-49 / 14 50-59 / 1 60-69 / 15 70-79 / 17
QUESTION 19 Find the variance for the given data. Round your answer to one more decimal...
QUESTION 19 Find the variance for the given data. Round your answer to one more decimal place than the original data. 77251 A7.8 D.6.2 QUESTION 20 Find the variance for the given data. Round your answer to one more decimal place than the original data. The weights (in ounces) of 10 cookies are shown 1.4 0.99 1.37 0.58 0.68 0.57 1.1 0.96 1.2 1.27 O A 0.098 oz o B.0.074 oz o C0.088 oz2 o D0.08 oz4
Andrew asked seven of his friends how many cousins they had. The results are listed below...
Andrew asked seven of his friends how many cousins they had. The results are listed below Find the mean number of cousins. Round your answer to one more decimal place than is present in the original data values. 15 9 8 9 646 O A. 8.1 cousins O B. 9.5 cousins O C. 9.6 cousins O D. 7.6 cousins Click to select your answer
At a certain airport, 80% of the flights arrive on time. A sample of 14 flights...
At a certain airport, 80% of the flights arrive on time. A sample of 14 flights is studied. 1) Find the probability that 9 flights were on time 2) Find the probability that exactly 10 of the flights were on time 3) Find the probability that 11 or more of the flights were on time Show your explanations. Displaying only the final answer is not enough to get credit. Note: round calculated numerical values to the fourth decimal place where...
Develop three-month and four-month moving averages for this time series. (Round your answers to two decimal...
Develop three-month and four-month moving averages for this time series. (Round your answers to two decimal places.) Month Time Series Value 3-Month Moving Average Forecast 4-Month Moving Average Forecast 1 9.5 2 9.3 3 9.4 4 9.6 5 9.9 6 9.8 7 9.8 8 10.5 9 9.9 10 9.7 11 9.6 12 9.6 Does the three-month or four-month moving average provide more accurate forecasts based on MSE? Explain. The four-month moving average provides more accurate forecasts, because its MSE is...
In a benchmark study, a fast food restaurant had an average service time of 2.6 minutes....
In a benchmark study, a fast food restaurant had an average service time of 2.6 minutes. Assume that the service time for the fast food restaurant has an exponential distribution. (Round your answers to four decimal places.) (a) What is the probability that a service time is less than or equal to one minute? (b) What is the probability that a service time is between 15 seconds and one minute? (c) Suppose the manager of the restaurant is considering instituting...
In a benchmark study, a fast food restaurant had an average service time of 2.8 minutes....
In a benchmark study, a fast food restaurant had an average service time of 2.8 minutes. Assume that the service time for the fast food restaurant has an exponential distribution. (Round your answers to four decimal places.) (a) What is the probability that a service time is less than or equal to one minute? (b) What is the probability that a service time is between 45 seconds and one minute? (c) Suppose the manager of the restaurant is considering instituting...
Listed below are the amounts of time (in months) that the employees of a restaurant have been working at the restaurant. Find the standard deviation for given sample data. Round your answer to one more decimal place than is present in the original data. 2 3 9 14 21 42 55 84 101 122 42.5 months 44.9 months 41.4 months 43.6 months
Many fast-food restaurants have soft drink dispensers with preset amounts, so that when the operator merely pushes a button for the desired rink the cup is automatically filled. This method apparently saves time and seems to increase worker productivity. A researcher randomly selects 9 workers from a restaurant with automatic dispensers and 9 works from a restaurant with manual dispensers. At a 1% significance level, use the Mann-Whitney U Test to test whether workers with automatic dispensers are significantly more...
QUESTION 19 Find the variance for the given data. Round your answer to one more decimal place than the original data. 77251 A7.8 D.6.2 QUESTION 20 Find the variance for the given data. Round your answer to one more decimal place than the original data. The weights (in ounces) of 10 cookies are shown 1.4 0.99 1.37 0.58 0.68 0.57 1.1 0.96 1.2 1.27 O A 0.098 oz o B.0.074 oz o C0.088 oz2 o D0.08 oz4
Andrew asked seven of his friends how many cousins they had. The results are listed below Find the mean number of cousins. Round your answer to one more decimal place than is present in the original data values. 15 9 8 9 646 O A. 8.1 cousins O B. 9.5 cousins O C. 9.6 cousins O D. 7.6 cousins Click to select your answer
At a certain airport, 80% of the flights arrive on time. A sample of 14 flights is studied. 1) Find the probability that 9 flights were on time 2) Find the probability that exactly 10 of the flights were on time 3) Find the probability that 11 or more of the flights were on time Show your explanations. Displaying only the final answer is not enough to get credit. Note: round calculated numerical values to the fourth decimal place where...
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