Let X equal the thickness of spearmint gum manufactured for vending machines Assume that the distribution of X is N( Icirc frac14 , Iuml 2) The target thickness is 7 5 hundredths of a n inch We shall test the null hypothesis H0 Icirc frac14 7 5 against a two sided alternative hypothesis, using 10 o...

a t 75 s 10 t 0025 9 2262 The critical region is t 2262 b t 755 75 01027 ...

Let X equal the thickness of spearmint gum manufactured for vending machines. Assume that the distribution of

Question:

Let X equal the thickness of spearmint gum manufactured for vending machines. Assume that the of X is N(Î¼, Ïƒ2). The target thickness is 7.5 hundredths of a n inch. We shall test the null hypothesis H0: Î¼ = 7.5 against a two-sided alternative hypothesis, using 10 observations.
(a) Define the test statistic and critical region for an Î± = 0.05 significance level. Sketch a figure illustrating this critical region.
(b) Calculate the value of the test statistic and state your decision clearly, using the following n = 10 thicknesses in hundredths of an inch for pieces of gum that were selected randomly from the production line:

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...