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Consider two sample means distributions corresponding to the same x distribution. The first sample mean distribution is based on samples of size n=100 and the second is based on sample of size n=22
Assume that in order to satisfy legal requirements, a meat pie manufacturer might only produce 0.2% of pies below weight of 730 grams. Suppose the manufacturer precisely meets this requirement and
Suggest two events A and B. The probability of A is 0.3, the probability of B is 0.4, and probability of A intersect B is 0.2. Determine the probability of A union B?
In a classroom there are 100 students. 60 of them are male. There're 50 seniors in the class and 20 of the females are seniors. determine the probability that the randomly selected student is a male
Discuss that the median time to failure is less than the MTTF for constant hazard components.
There're several advantages of using paired t-test. Since same subjects are being tested in each of the varying situations, those subjects serve as their own control. This is the major advantage as
Calculate a 95% confidence interval for the population mean, based on the sample 1.5, 1.54, 1.55, 1.51, 0.09, 0.08, 1.60, 0.17, 0.99, 0.98, 1.12, 1.13, 1.00, 1.56, and 1.53. Change the last number f
A certain kind of automobile battery is known to last average of 1130 days with standard deviation of 150 days. If 900 of these batteries are selected, determine the following probabilities for aver
Assume an airline claims that its flights are consistently upon time with average delay of at most 15 minutes. It claims that average delay is so consistent that the variance is no more than 150 min
Assume a meat pie manufacturer maintains mean pie weight of 850 grams with standard deviation weight of all pies of 59 grams. Suppose the weight of all pies is Normally Distributed. Determine the w
Assume that in order to satisfy legal requirements, a meat pie manufacturer might only produce 0.2% of pies below weight of 750 grams. Suppose the manufacturer precisely meets this requirement and t
Assume we flip fair coin four times. Let X = number of heads, Y = 1 if last flip is a tails. Write down the joint distribution of X and Y.
We determine an additional 30 girls with high childhood SES and find out a mean age at menarche of 12.9 years with the standard deviation of 1.5 years. Suppose that the underlying variance of age at
Assume that the fair coin with p = .5 (probability of heads) is tossed independently 10 times. Determine the probability that strictly more heads are obtained than tails.
Wal-Mart offers table lamps in 9 styles. Customers might choose one of 10 shades to go with each lamp. How many combinations of lamp and shade are offered?
Baseball coach should choose 9 players for syarting lineup. He has 24 players to choose from. How many different groups are possible?
Can you model the procedure with Markov chain? If yes, determine the states and transition probabilities? Sunday evening the pile was empty. What is the probability that Thursday evening there is exac
The US Senate has two senators from each of the 50 states (100 senators total). In how many ways can a committee of seven senators be chosen if exactly one pair of senators share their state?
A merchandisinc manager for Campbell's Soup should choose 6 different soups to feature in the weeks advertisements. He has 9 soups to choose from. How many different arrangements are possible?
If it is true that only 10% of all students in university don't own a cell phone, determine the probability that NONE of the students in random sample of 15 students DO NOT own a cell phone?
Assume we flip fair coin four times. Let X = number of heads, Y = 1 if last flip is a tails.
Compare and contrast techniques of evaluation and prescription in terms of time and the types of claims produced by each. Provide examples to support your response.
Amazon ships packages to customers from their Columbia Distribution Center, 0.14 of the packages arrive damaged, 0.08 ate sent to an incorrect location and 0.06 are both damages and sent to wrong l
Find out the minimum sample size needed, using prior study that found that 36% of the respondents said they have high-speed Internet access.
A normal distribution has a mean of 40 and a standard deviation of 6. What percent of the scores are between 22 and 58?