- Use a table of areas (Table II) to obtain the area under the standard normal curve that lies (pls. round your answer to four decimal places)
- to the left of -0.09
- to the left of 2.03
- to the right of 1.11
- between 0.80 and 2.15
- either to the left of -2.10or to the right of 1.79
**Use a table of areas (Table II) for the standard normal curve to find the required z-score.
- Find the z-score having area 0.15 to its right under the standard normal curve; that is, find . Round your answer to two decimal places.
- Determine the two z-scores that divide the area under the standard normal curve into a middle 0.90 area and two outside 0.05 areas. Round your answer to two decimal places. z-score #1= z-score#2=
AutoSave (. Off) H Stats help - Saved to this PC Table Tools Dominick Crivaro X File Home Insert Draw Design Layout References Mailings Review View Help Design Layout t 9 Tell me what you want to do Share Comments & Cut Times New Rom - 12 - A" A Aa- Ap Copy AaBbCcL AaBbC( AaBbCcDd AaBbCcI AaBbCc] AaBbCCD AAB AaBbCcI AaBbCCI Find - Replace Paste Format Painter BI U - ab x x A - LA. Emphasis Heading 1 1 List Para.. 1 Normal Strong Subtitle Title 1 No Spac... Subtle Em... 41 4 Select - Dictate Clipboard Font Paragraph Styles Editing Voice . . I . . . .1 . . . . . . HI. . B . . . I . . 5 . 3. The weights of five players on a football team are shown below. Player A B C D E Weight (1b) 290 310 250 255 220 Consider these players to be a population of interest. The table below shows all of the possible samples of size four. For each sampli sample mean are listed. Sample Weights X A, B, C, D 290, 310, 250, 255 276.25 A, B, C, E 290, 310, 250, 220 267.50 A, B, D, E 290, 310, 255, 220 268.75 A, C, D, E 290, 250, 255, 220 253.75 B, C, D, E 310, 250, 255, 220 258.75 Use the table above to find the mean of the variable x. 4. The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.35 inches and a standard deviation of 0.03 inches. What percentage of bolts will have a diameter greater than 0.37 inches? Round your answer to two decimal places. Page 2 of 6 701 words X + 100% Type here to search OHemON XI +66 EM 8:43 AM 12/3/2019AutoSave (. Off) H Stats help - Saved to this PC Table Tools Dominick Crivaro X File Home Insert Draw Design Layout References Mailings Review View Help Design Layout t 9 Tell me what you want to do Share Comments & Cut Paste Copy Times New Rom - 12 - A" A Aa- Ap AaBbCcL AaBbC( AaBbCcDd AaBbCcI AaBbCc] AaBbCcD AQB AaBbCcI AaBbCCI Find - Replace Format Painter BI U - ab X x A LA. Emphasis Heading 1 1 List Para.. 1 Normal Strong Subtitle Title 1 No Spac... Subtle Em.. 41 4 Select - Dictate Clipboard Font Paragraph Styles Editing Voice . . I . . B . . 4 . . . 1 . . . 5 5. The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a standard deviation of 1.2 oz. What is the probability that the volume of soda in a randomly selected bottle will be less than 32 oz? Round your answer to four decimal places. . The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a pregnancy lasts between 283 days and 298 days? Round your answer to four decimal places. 7. The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 221 hours and a standard deviation of 10 hours. Find the 30th percentile. Round your answer to two decimal places. Page 3 of 6 701 words + 100% Type here to search O emo N EM 99 + 8:44 AM 12/3/2019AutoSave (. Off) H Stats help - Saved to this PC Table Tools Dominick Crivaro X File Home Insert Draw Design Layout References Mailings Review View Help Design Layout t 9 Tell me what you want to do Share Comments & Cut Copy Times New Rom - 12 - A" A Aa- Ap AaBbCcL AaBbC( AaBbCcDd AaBbCcI AaBbCc] AaBbCcD AQB AaBbCcI AaBbCCI Find - Paste Replace Dictate Format Painter BI U - ab X x A LA. Emphasis Heading 1 1 List Para.. 1 Normal Strong Subtitle Title 1 No Spac... Subtle Em... 41 4 Select - Clipboard Font Paragraph Styles Editing Voice . . I . . . # . . .I . . 4 . . . 1 . . 5 . 8. The test scores of 5 students are under consideration. The following is the dotplot for the sampling distribution of the sample mean for samples of size 2. . . . . . .. 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 Find the probability, expressed as a percent, that the sample mean will be within 4 points of the population mean, H. 9. For the population of one town, the number of siblings, x, is a random variable whose relative frequency histogram has a reverse J-shape. The mean number of siblings is 1.4 and the standard deviation is 1.2. Let x denote the mean number of siblings for a random sample of size 35. Determine the sampling distribution of the mean for samples of size 35. In particular, state whether the distribution of x is normal or approximately normal and give its mean, ME, and standard deviation, of. Page 3 of 6 701 words + 100% Type here to search N EM 99 + 8:45 AM 12/3/2019AutoSave (. Off) H Stats help - Saved to this PC Dominick Crivaro X File Home Insert Draw Design Layout References Mailings Review View Help Tell me what you want to do Share Comments & Cut Times New Rom - 12 - A" A Aa- Ap AaBbCcL AaBbC( AaBbCcDd AaBbCcI AaBbCc] AaBbCcD AQB AaBbCcI AaBbCCI Find - Paste LA Copy 41 4 Replace Format Painter BI U - ab X x' A LA. Emphasis Heading 1 1 List Para. 1 Normal Strong Subtitle Title 1 No Spac... Subtle Em.. Select - Dictate Clipboard Font Paragraph Styles Editing Voice . .. . . . I . . . 6 . . I . . . 10. Scores on a biology final exam are normally distributed with a mean of 220 and a standard deviation of 16. Determine the percentage of samples of size 4 that will have mean scores within 12 points of the population mean score of 220. Round your answer to two decimal places. 11. The amount of coffee that a filling machine puts into an 8-ounce jar is normally distributed with a mean of 8.2 ounces and a standard deviation of 0.18 ounce. What is the probability that the sampling error made in estimating the mean amount of coffee for all 8-ounce jars by the mean of a random sample of 100 jars will be at most 0.02 ounce? Round your answer to four decimal places. Page 4 of 6 701 words X + 100% Type here to search OFemON XI +66 EM 8:46 AM 12/3/2019
