A Survey Claims That 9 Out of 10 Doctors (I $\alpha = 0,10 , \text { b) } \alpha = 0,05 \text {, and c) } \alpha = 0,0 ]$

question 132

Multiple Choice

A survey claims that 9 out of 10 doctors (i.e., 90 % ) recommend brand Z for their patients who have children. To test this claim against the alternative that the actual proportion of doctors who recommend brand Z is less than 90 % , a random sample of doctors was taken. Suppose the test statistic is z= -2.23 . Can we conclude that H0 should be rejected at the a) $\alpha = 0,10 , \text { b) } \alpha = 0,05 \text {, and c) } \alpha = 0,0 ]$ level?

• A) a) yes; b) yes; c) no
• B) a) yes; b) yes; c) yes
• C) a) no; b) no; c) no
• D) a) no; b) no; c) yes

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Definitions:

Available-for-Sale Securities

Financial assets that are not classified as held-to-maturity or trading securities, and can be sold in the short-term.

Market Adjustment

Market adjustment is the process of modifying the value of an asset or inventory to reflect its current market value rather than its book value, often due to changes in demand, supply, or economic conditions.

Journal Entry

A record in accounting that shows the economic effects of transactions on the accounts of a business.

Held-to-Maturity Debt Securities

Investments in debt securities that a company has the positive intent and ability to hold until maturity.