Null hypothesis and the alternative hypothesis
For the following statement, write the null hypothesis and the alternative hypothesis. Also label which one is the claim. A car manufacturer claims that their cars makes at least 35 miles per gallon of fuel.
Expected delivery within 24 Hours
One of Specialty's managers felt strongly that the order quantity should have a 70% chance of meeting quantity demanded (i.e. only a 30% chance of stock-out). What quantity should be ordered under this policy?
A sample of size 56 is to be drawn from a t distribution where is an integer greater than 2. For this distribution, the expected value is 0, and the variance is /( ? 2). What is the expected value, variance, and approximate distribution of the sam
The distribution of bacteria in milk is roughly normal. The average bacteria count is M = 2500 and the SD = 300. In 42 random samples of milk what is the probability that the average bacteria count for one day is between 2350 and 2650?
Manager at the furniture factory finds that is costs $2200 to produce 100 chairs in one day and $4600 to produce 300 chairs in one day. Determine the y-intercept of this line?
The monthly utility bills are normally distributed with a mean value of $160 and a standard deviation of $25. A) find the probability of having a utility bill between $120-$180 dollars.
A random sample is obtained from a normal population with a mean of µ = 80 and a standard deviation of s = 8. Which of the following outcomes is more likely? Explain your answer.
Use the normal distibution to approximate the binomial distribution. USA today reported that 15% of all books are of the romance genre. If a local bookstore sell 316 books on a given day. Find the probabiltiy that exactly 58 are romances?
A certain kind of appliance requires repairs on the average once every 2 years. Assuming that the times between repairs are exponentially distributed, what is the probability that such an appliance will work at least 3 years without repairs?
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