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A population consists of the five measurements 4,6,8,10 and 1. How many possible samples of size n=4 can be drawn from the population? *
3 points
5
An electronic company in Laguna manufactures resistors that have a mean resistance of 120 ohms and a standard deviation of 13 ohms. Find the probability that a random sample of 40 resistors will have an average resistance greater than 114 ohms.
The Malayo Colleges Mindanao recently conducted a study analyzing the privacy management habits of teen internet users. In a group of 192 teens, 68 reported having more than 100 followers on Twitter. Find the upper bound of a 90% confidence interval for the true proportion of teens who would report having more than 100 followers on Twitter.
The Malayo Colleges Mindanao recently conducted a study analyzing the privacy management habits of teen internet users. In a group of 164 teens, 134 reported having more than 100 followers on Twitter. Find the lower bound of a 90% confidence interval for the true proportion of teens who would report having more than 100 followers on Twitter.
A random sample of n =300 observations from a binomial population produced x=125. Estimate the population proportion and determine the standard error.
In a math test,the mean score is 45 and the standard deviation is 4. Assuming normality, what is the probility that a score picked at random will kie above 50?
A group of students got the following scores in an achievement test: 9 12 15 18 21 and 24. Consider sample size of 3 that can be drawn from this population. And construct a sampling distribution of the resulting sample means
The tallest living man at the time of this writing is Sultan Kosen, who has a height of 251 cm. The shortest living man is Chandra Bahadur Dangi, who has a height of 54.6 cm. Heights of men have a mean of 174.12 cm and a standard deviation of 7.10 cm. Which of these two men has the height that is more extreme?
Five hundred children participated in a field demonstration. Their heights averaged 110cm with a standard deviation of 6cm.
1. What is the probability that a child picked at random has a height greater than 116cm?
2. What is the probability that the height of a child picked at random is less than 104cm?
3. What is the probability that the height of a child picked at random is between 110cm and 122cm?
4. How many children have heights between 98 and 104cm?
5. How many children belong to the upper 15% of the group?
A population consists of the five measurements 2,6,8,3 & 1. How many different samples of size n=2 can be drawn from the population? What is the mean and variance of the sampling distribution of the sample means? Follow the steps1to 6
