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Find the required sample size without making a guess for the observed value of . A computer manufacturer wishes to estimate what proportion of their laptop computers are defective. Obtain a sample size that will ensure a margin of error of at most 3.5 percentage points for a 95% confidence interval.
A) 785
B) 28
C) 197
D) 3137
A new county hospital is attempting to determine whether it needs to add a particular specialist to its staff. Five percent of the general hospital population in the county contracts the illness the specialist would treat.
Construct a 99% confidence interval for the population mean tread wear for this type of tire.
Dr. Richmond, a psychologist, is studying the daytime television viewing habits of college students.
What is the significance of the picture at the top of the t-table? What is the difference between a sample parameter (X-bar and s) and a proportion parameter (n)?
there are 4 unrelated parts to this question. justify your answersa i if 8 identical blackboards are to be divided
Construct a 95% confidence interval for the population mean, assuming a normal distribution?
Consider a large population of families with three children each. If the genders of children in any family are independent of one another, the number of male children in any family will have a binomial distribution based on three trials.
researchers at a food company are interested in how a new spaghetti sauce made from green tomatoes and green in color
what does the p-value tell the business statistician especially in terms of the normal curve? if the p-value is smaller
"Determine if the statement is a typical null hypothesis (Ho) or alternative hypothesis (Ha). The average price of a particular statistics textbook over the Internet is the same as the average price of the textbook sold at all bookstores in a coll..
The monthly sales demand for a new product is uncertain, but it is considered to be adequately described by a normal random variable with mean 50,000 units and variance 100,000,000.
Calculate the probability that a hand of 13 cards dealt from a normal pack of 52 contains exactly two kings and one ace. what is the probability that it contains exactly one ace given that it contains exactly two kings.
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