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Suppose you are going to roll a fair six sided die 30 times and record p(hat) the proportion of times that a 1 or a 2 is showing. 1.) where should the distribution of the 30 p(hat) values be centered? 2.) what is the standard deviation of the sampling distribution of p(hat) the proportion of all rolls of the die that show a 1 or a 2? 3.) describe the shape of the sampling distribution of p(hat) thank you if u can help me with any of it I am completely stuck!!
If the process mean and standard deviation remain constant, what proportion of the output from this process will be defective?
14 machines are planned to be used for a 60-day production run for a customer. The operating time is 1660 hours. Upon failure, a machine must be returned to the manufacturer for repair.
Assume that each of the following studies cannot be analyzed using a parametric procedure. For each of the following studies (below), indicate the appropriate nonparametric procedure, and explain why you chose it.
The time a cashier spends processing individual customer's order are independent random variables with mean 2.5 minute and standard deviation of 2.
A person reads a research study of the effectiveness of perineal exercises in preventing urinary incontinence and notes that the number of subjects in each group is 120.
Roll a die and record the count of spots on the up face: P(1) = 0, P(2) = 1/6, P(3) = 1/3, P(4) = 1/3, P(5) = 1/6, P(6) = 0.
P-value to test hypotheses,
Sources and Uses of Cash. State how each of the following events would affect the firm's balance sheet. State whether each change is a source or use of cash.
Translate this into a statistical hypothesis-testing problem and carry out the test. Be sure to give the null and alternative hypotheses, the value of the test statistic, the p-value, and your conclusions.
If profit earned in the manufacture and sale of X units of a product is P dollars where: P = 10X - 0.001X2
In a sample of 30 randomly selected women, it was found that their mean height was 63.4 inches. From previous studies, it is assumed that the standard deviation is 2.4.
Triathalon Times Jeff Parent is a statistics instructor who participates in triathalons. Listed below are times (in minutes and seconds) he recorded as riding a bicycle for five laps through each mile of a 3-mile loop.
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