statistics
 👍
 👎
 👁
Respond to this Question
Similar Questions

Statistics
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a random sample of 20 people have a mean IQ score greater than 110? (Round to 4 decimal places)

Psychology Statistics
2 For a sample of n = 20 individuals, how large a Pearson correlation is necessary to be statistically significant for a twotailed test with = .05? 3 The Pearson correlation is calculated for a sample of n = 25 individuals.

statistics
1. When designing motorcycle helmets, the breadth of a person's head must be considered. Men have head breadths that are normally distributed with a mean of 6.0 inches and a standard deviation of 1.0 inches. If one male is

statistics
Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database, an estimate of the percentage of adults who have at some point in their life been told they have

statistic
Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125 points) are normally distributed, with mean equal to 112 and standard deviation equal to 12. Find the

stats
You are given the following information obtained from a random sample of 4 observations. 25 47 32 56 At a .05 level of significance, determine whether or not the mean of the population from which this sample was taken is

stat
the average number of pushups a United States Marine does daily is 300, with a standard deviation of 50. A random sample of 36 marines is selected. What is the probability that the sample mean is at most 320 pushups? With a mean

Statistics
The average age of chemical engineers is 37 years with a standard deviation of 4 years. If an engineering firm employs 25 chemical engineers, find the probability that the average age of the group is greater than 38.2 years old.

Math
Growth of Plant Sample A Time (days) Height (in.) 1 6 2 12 3 18 4 24 5 30 Growth of Plant Sample B Time (days) Height (in.) 1 2 2 5 3 10 4 17 5 26 Compare the data for the growth of two plant samples. How can you determine which

statistics
The Intelligence Quotient (IQ) test scores for adults are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability we could select a sample of 50 adults and find the mean of this sample is

statistics
random sample of n = 16 scores is selected from a normal distribution with a mean of μ = 50 and standard deviation of σ = 10. a. what is the probability that the sample mean will have a value between 45 and 55? b. what is the

statistics
Q Two samples of sizes 8 and 10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probability that the variance of the first sample is more than twice the variance of the second
You can view more similar questions or ask a new question.