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A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 16 cans of this soft drink, which were checked for calories, contained a mean of 31.8 calories with a standard deviation of 3 calories. Assume that the number of calories in 12-ounce soda cans is normally distributed.
a) State the null and alternative hypotheses.b) Select the distribution to use. Explain briefly why you selected it.c) Assuming that they wish to test the claim at alpha = 0.025, determine the rejection and non rejection regions based on your hypotheses in a). State the critical value.d) Calculate the value of the test statistic.e) Does the sample information support that the manufacturer's claim is false? Explain your conclusion in words.
The number of standard errors that the sample estimate (p 1 - p 2 ) of (p1 - p2) falls from its null hypothesis value of zero is called
Create Gantt chart using MSP. Suppose the 5 day workweek, compute critical path of the project.
If we know that 20 people will attend, what price should be charged per person to break even?
Starting with the initial solution derived by the nw corner method identify the cell w/the best cost improvement index and the quantity that can be transferred to that cell.
Is it reasonable typical worker does not miss any days during a pay period?
What characterizes a regular definition (dictionary) and an operational definition? What is the purpose of sampling?
Given that a Brand A battery just failed, what is the expected value of the time we wait until the next Brand B failure?"
A manufacturer of flashlight batteries took a sample of 13 batteries from a day's production and used them continuously until they were drained. In what ways would this information be useful to the manufacturer?
Find the LCD for the given rational expression, and convert each into an equivalent rational expression with the LCD as the denominator.
The time in hours required for 40 individuals to complete their federal income tax returns. Using past years' data, the population standard deviation can be assumed known with σ=9 hours.
After treatment is administered to individuals in sample, sample mean is found to be M = 55. Determine Cohen's d measure effect size for both tests (σ = 20 and σ = 10).
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighted on a very accurate scale. The results in grams were:
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