A national caterer determined that 87% of the people who sampled their food said that it was delicious. A random sample of 144 people is obtained from a population 5000. The 144 people are asked to sample the caterer`s food.  Will the distribution of pˆ,the sample proporti

If a person’s z score equals 1.61, what percentage of the observations are more extreme?

In a 430-page manuscript, there are 270 randomly distributed misprints. Use the Poison approximation. Find the mean number 2 of misprints per page. Round to one decimal place as needed.

The time is takes a studen to walk from the dorn to the chemistry lab follows roughly a Normal distrubtion with a mean of 20 minutes and a stardard deviation of 3 minutes. What porportion of students is faster than 15 minutes when walking from the dorm to the chemistry lab?

The board of examiners that administers the real estate broker's examination in a certain state found that the mean score on the test was 494 and the standard deviation was 72. If the board wants to set the passing score so that only the best 10% of all applicants pass, what is the passing score? Assume that the scores are normally distributed. Round to the nearest whole number.

Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. He conducts this experiment 15 Sample mean for Car 2 x= 245 mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) times on each car and records the number of miles driven. Full data set Car 1 Median for Car 1 M= mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) 245 242 215 244 220 265 291 160 284 251 169 319 257 306 267 Car 2 Median for Car 2 230 242 M=O mi / 10 gal 206 214 236 256 245 255 241 264 (Type an integer or decimal rounded to one decimal place as needed.) 276 252 250 251 257

Suppose the distribution of heights of a group of 300 children is normal, with a mean of 150 centimeters and a standard deviation of 12 centimeters. About how many of these children are taller than 162 centimeters? children

A normal distribution has a mean of mu = 80 with o = 20. What score separates the highest 40% of the distribution from the rest of the scores?

The table available below shows the weights (in pounds) for a sample of vacuum cleaners. The weights are classified according to vacuum cleaner type. At a = 0.10, can you conclude that at least one mean vacuum cleaner weight is different from the others? E Click the icon to view the vacuum cleaner weight data. Let PBu, PBLU. and HTC represent the mean weights for bagged upright, bagless upright, and top canister vacuums respectively. What are the hypotheses for this test? O A. Ho: Peu = HBLU "HTC Ha: HBu * HBLU HTC Weight of Vacuum Cleaners by Type B. Ho: At least one of the means is different. Hg: PBu = HBLU =HTC O C. Ho: HBU PBLU HTC Bagged upright 21 20 18 15 23 24 16 24 Bagless upright Top canister 17 18 20 18 Hg: HBu = HBLU =HTC 23 22 24 26 20 23 O D. Ho: HBU HBLU FHTC Ha: At least one of the means is different. What is the test statistic? Print Done F= (Round to two decimal places as needed.) What is the P-value? P-value = (Round to three decimal places as needed.) What is the…