a Having obtained a random sample from a population, you wish to use a chi squared test to decide whether the population distribution is standard normal If you base the test on six class intervals having equal probability under H0, what should be the class intervals b If you wish to use a chi squar...

a The six intervals must be symmetric about 0 so denote the 4th 5th and 6th intervals by 0 a a b b T ...

a. Having obtained a random sample from a population, you wish to use a chi-squared test to

Question:

a. Having obtained a random sample from a population, you wish to use a chi-squared test to decide whether the population is standard normal. If you base the test on six class intervals having equal probability under H0, what should be the class intervals?
b. If you wish to use a chi-squared test to test H0: the population is normal with µ = .5, Ïƒ = .002 and the test is to be based on six equiprobable (under H0) class intervals, what should be these intervals?
c. Use the chi-squared test with the intervals of part (b) to decide, based on the following 45 bolt diameters, whether bolt diameter is a normally distributed variable with µ = .5 in., Ïƒ = .002 in.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...