In Country A, the population mean height for 3-year-old boys is 38 inches. Suppo

Question

In Country A, the population mean height for 3-year-old boys is 38 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 7.1 inches with a standard devistion of 3 inches The bays were independently sampled. Assume that heights are Normally distributed in the population Complete parts a throughbelaw a. Determine whether the population mean for Country B boys is significantly different from the Country Amean Use a significence level of 005 Which of the folowing comectly states Ho and H,? cHo-38 Ha : z 38 Ho-38 O A O B. C, Hai

Explanation / Answer

The statistical software output for this problem is:

One sample T summary hypothesis test:
: Mean of population
H0 : = 38
HA : 38

Hypothesis test results:

Hence,

t = -1.16

Mean Sample Mean Std. Err. DF T-Stat P-value 37.1 0.77459667 14 -1.161895 0.2647

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---