TABLE 9-1 Microsoft Excel Was Used on a Set of Data Involving

question 3

True/False

TABLE 9-1
Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant. A manager wants to know if the mean number of defective bulbs per case is over 20 during the morning shift. She will make her decision using a test with a level of significance of 0.10. The following information was extracted from the Microsoft Excel output for the sample of 46 cases:
n = 46; Arithmetic Mean = 28.00; Standard Deviation = 25.92; Standard Error = 3.82;
Null Hypothesis: H₀ : μ ≤ 20.000; α = 0.10; df = 45; T Test Statistic = 2.09;
One-Tail Test Upper Critical Value = 1.3006; p-value = 0.021; Decision = Reject.
-Referring to Table 9-1, the manager can conclude that there is sufficient evidence to show that the mean number of defective bulbs per case is over 20 during the morning shift using a level of significance of 0.10.

---

Definitions:

Fixed Interval

A specified period of time between events or actions, used in scheduling and monitoring activities.

Uncovered Interest Parity

An economic theory suggesting that the difference in interest rates between two countries will equal the expected change in exchange rates between their currencies.

Eurobonds

International bonds issued in a currency different from the currency of the country or market in which they are issued, allowing issuers to access capital outside their home markets.

International Bonds

Bonds issued in a country by a non-domestic entity, allowing the issuer to access foreign capital.