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A survey reported that 80% of college students had access to a tablet. In a sample of 200 college students, find the probability that more than 170 had access to a tablet.
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A new type of soft drink from Frackly Inc. is sold in 500 milliliter (ml) bottles. The mean volume of drink placed in a bottle is 490 ml with a standard deviation of 6.1 ml. Assuming a normal distribution of the data, wh ...
A spinner is divided into five equal sectors labeled 1 through 5. What is the probability of getting at most two prime numbers in three spins?
The recent Poll revealed that 68 out of 98 men and 45 out of 85 women expressed "at least some support" for a new municipal policy. At the 5% significance level, does the proportion of Supporting the policy differ from t ...
In the following five scenarios, H0, α, the obtained probability (p-value), and the true status of H0 are given. Assume that our test statistic follows a standard normal distribution. Do the following: (a) State whether ...
Given the following values: = 20, M = 16, = 0.7, conduct a one-sample z test at a .05 level of significance. What is the decision for a two-tailed test? A) to reject the null hypothesis B) to retain the null hypothesis C ...
The probability of the Mets winning a game against the Diamondbacks is 3/4. If they are playing a three-game series this weekend, what is the probability that the Mets will win at least 2 out of 3 games?
Cardinal Industries had the following operating results for 2018: Sales = $33,813; Cost of goods sold = $23,967; Depreciation expense = $5,947; Interest expense = $2,685; Dividends paid = $1,951. At the beginning of the ...
Most graduate schools of business require applicants for admission to take the GMAT, the Graduate Management Admission Test. Scores on the GMAT are roughly normally distribute with a mean of 527 and a standard deviation ...
Let x be a random variable that represents the pH of arterial plasma (i.e., acidity of the blood). For healthy adults, the mean of the x distribution is μ = 7.4.† A new drug for arthritis has been developed. Howeve ...
The number of defective items produced by a machine in a large factory follows a Poisson distribution with a rate of λ=1.5 per day. What is the probabilityThe machine produces exactly zero defective items on exactly two ...
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