# Statstics

17 results

Statstics
A tourist in Ireland wants to visit 6 different cities. How many different routes are possible

statstics
Considering that a researcher can test at the <p = .05 (95%), p = .01 (99%), or p = .001 (99.9%) level for statistical significance, how do you use these three levels in relationship to evaluate risk to patients in implementing the decisions based on research findings?

statstics a level s1
Three cards are selected at random without replacement, from a shuffled pack of 52 playing card. Using a tree diagram find the probability distribution of the number of honours (A,K,Q,J,10) obtained

statstics
construct a 90 confidence interval for the population mean ÃŽ¼. assume the population has a normal distribution. A sample if 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation od 0.78. Round to the nearest hundredth

statstics
a population of score has u=50 and standard devidation =10 if every score in the population is multipied by 2 the new mean and standard would be

statstics
A real estate company is selling 32 houses. One of the houses costs $834,000, but in order to attract more buyers, the price is dropped to$819,000. By how much does this change the average price of the 32 houses?

Statstics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week (round answer to the nearest ...

Statstics
A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of .5 ounces. What is the probability that a loaf of bread is <21 ounces?

statstics
The lengths of the eggs of a species of bird are roughly normally distributed, with a mean of 32 mm and an SD of 1.2 mm. 1.Approximately what is the 99th percentile of the lengths? Give your answer in mm but please do not enter the units. 2.Approximately 50% of the eggs have ...

statstics
The lengths of the eggs of a species of bird are roughly normally distributed, with a mean of 32 mm and an SD of 1.2 mm. 1.Approximately what is the 99th percentile of the lengths? Give your answer in mm but please do not enter the units. 2.Approximately 50% of the eggs have ...

statstics
A distribution of weights is symmetric about its median. The lower quartile of the weights is 90 pounds and the median is 120 pounds. Find the interquartile range of the distribution.

Statstics
Cities A, B, C and D are equidistant. That is, B is d miles from A, C is d miles from B, and D is d miles from C. Suppose you travel 55 mph from A to B, 40 mph from B to C, and 50 Mph from C to D. What single, constant speed could you have traveled from A to B to C to D that ...

Statstics
. You have proposed that males will outscore females on a standardized test of math skills. You now are looking at your results from an SPSS t-test which is analyzing for significance at the á = .05 level with a two-tailed test. You see the following output: t = 4.10 sig. = ....

statstics
a report says 65% of vechiles sold were SUV's. A random sample of 100 vechiles sold in last month is taken. Use the central limit theorem, find the probability that most 70% of the vechiles in the sample were SUV's

Statstics
In a random sample of 450 cases of juice, 3 of the 48 chosen cases had major defects. The sampling method had a margin of error of 0.04. What is the interval estimate for the proportion that would have defects in the form (lower limit, upper limit)? (0.1,0.9) (0.6,0.14) (0.02,...

Statstics
According to a survey by Topez Enterprises, a travel auditing company the avg error by travel agent is 128. suppose this figure was obtained from random sample of 41 travel agent & standard dervivation is 21. What is the point estimate of the national avg error for all travel ...

Statstics
Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with \alpha =2.3% A random sample of 18 Australian bank stocks has a sample mean of x bar = 6.1%. For the entire Australian stock market, the mean ...

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