2.To test a hypothesis involving proportions, both np and n(1-p) should a) Be at least 30 b) Be equal or greater than 5 c) Lie in the range from 0 to 1 d) There are no specific conditions surrounding the values of n and p Answer= 10. The purpose of hypothesis testing is to: (a) Determine value of the sample mean. (b) Determine evidence in favor of a parameter. (c) Determine the appropriate value of test statistic. (d) Derive the standard error of the data.

Q: Answer the picture

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Q: 2h-3>15

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Q: 66,67,34,45,64,67,75,58,54,59,67. Find the mode(s) of the given scores.

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A:

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A: We have to find 40% of 100

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A: To simplify the given expression.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.