An organization claims that the thought of adults ages 55 and over on which industry has the

Question:

An organization claims that the thought of adults ages 55 and over on which industry has the most trustworthy advertising is uniformly distributed. To test this claim, you randomly select 800 adults ages 55 and over and ask each which industry has the most trustworthy advertising. The table shows the results. At α = 0.05, test the organization’s claim.

Response Frequency, f

Auto companies ……………….. 128

Fast food companies …………... 192

Financial services companies ….. 112

Pharmaceutical companies …….. 152

Soft drink companies …………... 216

(a) Identify the expected distribution and state H₀ and H_a,

(b) Find the critical value and identify the rejection region,

(d) Decide whether to reject or fail to reject the null hypothesis,

(e) Interpret the decision in the context of the original claim.

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...