ulu hol takE á simple random sample (B) (C) A confidence interval should not be
ID: 3066491 • Letter: U
Question
ulu hol takE á simple random sample (B) (C) A confidence interval should not be constructed when population data are known. Since very few ball players make over $20,000,000 a year, the data are highly which violates a necessary condition for constructing a confidence interval Since the number of players is not listed, the degrees of freedom are unknown. Using the data from only one year is not sufficient to verify the trend from previous years 13. The t distribution is used for inference about a population mean in which of the following situations? In all cases where the size of the random sample is small, irrespective of any other factors. whenever a confidence interval for means with a confidence level of 90% or higher is constructed. In all cases where the sample size is small. the population is normal, and the population standard deviation, -isknown. The population is approximately normal and the population standard deviation is estimated based on a small random sample. . E Whenever np) 10 and n( 1 -p)Explanation / Answer
Solution:-
13) (D) The population is approximately normal and the population standard deviation is estimated based on a small random sample.
In probability and statistics, Student's t-distribution is any member of a family of continuous probability distributions that arises when estimating the mean of a normally distributed population in situations where the sample size is small and population standard deviation is unknown.
14) (B) Geometric
There are two widely different definitions of the geometric distribution. A series of Bernoulli trials is conducted until a success occurs, and a random variable is defined as either:
The number of trials in the series, or
The number of failures in the series.
In either case, the geometric distribution is defined as the probability distribution of x.
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