Mathematics, 20.09.2019 16:30 nestergurl101
According to a human resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. suppose the standard deviation of time spent on the job is 26 minutes. a. if the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be? enter the lower limit for the interval where 68% of the values would fall to enter the upper limit for the interval where 68% of the values would fall b. if the distribution of time spent on the job is approximately bell shaped, between what two times would 95% of the figures be? enter the lower limit for the interval where 95% of the values would fall to enter the upper limit for the interval where 95% of the values would fall c. if the distribution of time spent on the job is approximately bell shaped, between what two times would 99.7% of the figures be? enter the lower limit for the interval where 99.7% of the values would fall to enter the upper limit for the interval where 99.7% of the values would fall d. if the shape of the distribution of times is unknown, approximately what percentage of the times would be between 358 and 480 minutes? enter percentages rounded to 1 decimal place % (round the intermediate values to 3 decimal places. round your answer to 1 decimal place.)
Answers: 3
Mathematics, 21.06.2019 14:30
If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.
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Mathematics, 21.06.2019 20:30
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
Answers: 1
Mathematics, 21.06.2019 22:30
If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b
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Mathematics, 21.06.2019 23:30
Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?
Answers: 1
According to a human resources report, a worker in the industrial countries spends on average 419 mi...
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