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1.Compute a 95% confidence interval for the mean saline of the tears. You select a random sample of 100 tear drops. The sample has an average salt concentration of 0.1 with a standard deviation of 0.01.
2. In class a poll was conducted that I will get 60% of my work correct.To be 95% confident that I am within 2% of the vote I will actually receive, how many voters should have been
Using a one-sided hypothesis test with a 90% confidence level, which of the following statements do these data support?
Find Probability of independent events.Consider again the auto repair rates described. If you own two cars, what is the probability that.
Fast Service Truck Lines uses the Ford Super Duty F-750 exclusively. Management made a study of the maintenance costs and determined the number of miles traveled during the year followed the normal distribution. The mean of the distribution was 60..
Infomercials often peddle products under the guise of "studies show," While some of the products are surprisingly good, many aren't.
Develop a hypothesis to investigate this problem based on the claim of the heat pump manufacturer
Use the study to estimate the risk of an air bag fatality on a child seated on the front passenger seat.
Bingo Hamburger Co has a chain of 12 stores in a large city. Sales figures and profits for the stores are given in the following table. Obtain a regression line for the data & predict profit for a store assuming sales of $10 million.
The management of a chain of fast food restaurants wants to investigate the relationship between the daily sales volume (in dollars) of a company restaurant and the number of competitor restaurants within a 1 mile radius. The following data have b..
If x is a binomial random variable where n = 100 and p = .1, find the possibility that x is less than or equal to 10 using the normal approximation to the binomial.
What is the probability of finding exactly four watch soap operas?
An experiment consists of selecting a card at random from a 52-card deck. Refer to this experiment and find the probability of the event.
Select a random variable to represent the category. Produce a probability mass function for that variable, and use it to compute the mean, the median and the variance of the data in the data set. Show the probability mass function, both in tabular..
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