61 |
60 |
65 |
68 |
65 |
61 |
61 |
68 |
69 |
60 |
64 |
61 |
61 |
66 |
61 |
65 |
67 |
62 |
69 |
61 |
63 |
61 |
70 |
69 |
62 |
60 |
66 |
66 |
64 |
66 |
61 |
67 |
69 |
60 |
65 |
67 |
60 |
63 |
66 |
60 |
A police officer is concerned about speeds on a certain section of Interstate 95. The data accompanying this exercise show the speeds of 40 cars on a Saturday afternoon. (You may find it useful to reference the appropriate table: z table or t table)
a. The speed limit on this portion of Interstate 95 is 63 mph. Specify the competing hypotheses in order to determine if the average speed is greater than the speed limit.
H0: μ = 63; HA: μ ≠ 63
H0: μ ≥ 63; HA: μ < 63
H0: μ ≤ 63; HA: μ > 63
b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)
A randomly selected sample of college baseball players has the following heights in inches. 68, 63, 66, 63, 68, 63, 65, 66, 65, 67, 65, 65, 69, 71, 65, 70, 61, 66, 69, 62, 65, 64, 70, 63, 71, 63, 68, 68, 62, 71, 62, 65 Compute a 95% confidence interval for the population mean height of college baseball players based on this sample and fill in the blanks appropriately. < μ < (Keep 3 decimal places)
60 QUESTION 6 61 62 63 64 65 66 Calculate Sam's taxable income based on the following information: Sam earned $125,500 in salary, $650 of interest from a saving account, lost $2,000 on the sale of his car (personal use only) and $5,500 of municipal bond interest. Sam is single has no dependents and his itemized deductions totaled $9,500 67 68 69 O A. $111,750 . OB. $113,750 OC. $115,250 OD. 117.250 E. $116,650 PAI
1. A police officer is concerned about speeds on a certain section of Interstate 95. The data accompanying this exercise show the speeds of 40 cars on a Saturday afternoon. a. The speed limit on this portion of Interstate 95 is 66 mph. Specify the competing hypotheses in order to determine if the average speed is greater than the speed limit. H0: μ = 66; HA: μ ≠ 66 H0: μ ≥ 66; HA: μ < 66 H0: μ ≤...
Complete the stemplot for the following data. 63 66 81 66 55 50 64 69 64 89 89 67 56 62 71 67 78 69 74 64 60 50 65 51 54 53 70 55 63 71 5 00134556 6 02334445667799 7 | 01148 8 8
A randomly selected sample of college football players has the following heights in inches. 67, 63, 66, 63, 62, 63, 62, 65, 69, 61, 68, 63, 64, 68, 66, 64, 66, 70, 68, 65, 62, 66, 68, 62, 67, 66, 70, 71, 62, 64, 67, 62 Compute a 99% confidence interval for the population mean height of college football players based on this sample and fill in the blanks appropriately. A= ___< μ <___ (Keep 3 decimal places)
5.0 69 4.5 68 3.5 3.0 $ 2.5 2.0 67 65 64 63 61 1.0 0.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 UNEMPLOYMENT RATE (Percent)
The female students in an undergraduate engineering core course at ASU self reported their heights to the nearest inch. The data are below. Construct a histogram step-by-step for the female student height data. 65 66 64 66 63 67 63 66 64 68 67 61 67 65 62 65 70 69 63 69 61 65 67 69 67 63 69 65 68 68 68 66 63 64 65 68 70
For the following data "Class Data: Heights by gender" Male: 69 72.5 71 70 69 66 65 72 73 67 71 69 68 Female: 65 63 62 63.5 68 65 64 64 62.75 68 Make back to back stem plots of heights. Compare the distributions with respect to height, with reference to center, spread and shape of the distribution.
The following data give the numbers of computer keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days. 70 57 72 58 69 59 69 60 68 60 68 61 68 62 67 62 67 63 66 63 66 64 65 64 64 Find the percentile rank of 64. The percentile rank of 64 is exact number, no tolerance
estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the first time in a given city. How big should the sample be? Define your procedures for this estimate (if necessary, set your own values of unknown parameters, based on statistical theory). In Table 1 you will find all ages of this patient population. 54 58 56 48 62 59 55 56 60 52 53 61 56 56 53 37 71 62 39 61 54...