in Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.8 inches with a standard deviation of 2 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05. which of the following corectly states H, and H,? OA H37 OB. Hus37 Hp37 Ho: 37 O H37 Họ: 37 OE H37 H 37 F. Find the test statistic - -0.39 (Type an integer or decimal rounded to two decimal places as needed.) Find the pvalue Type an integer or decimal rounded to three decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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In Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.8 inches with a standard deviation of 2 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through c below.
a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05.
Which of the following correctly states Ho and Ha?
Ho: µ#37
O A.
Ho: μz37
Oc.
H3i µ<37
Ho: µ> 37
OB.
Hai H=37
Hai us37
Ho: H = 37
Ha:µ<37
Ho:H = 37
E.
Ha: µ> 37
Ho: µ= 37
Ha: H#37
Find the test statistic.
t= -0.39
(Type an integer or decimal rounded to two decimal places as needed.)
Find the p-value.
p
(Type an integer or decimal rounded to three decimal places as needed.)
Transcribed Image Text:In Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.8 inches with a standard deviation of 2 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through c below. a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05. Which of the following correctly states Ho and Ha? Ho: µ#37 O A. Ho: μz37 Oc. H3i µ<37 Ho: µ> 37 OB. Hai H=37 Hai us37 Ho: H = 37 Ha:µ<37 Ho:H = 37 E. Ha: µ> 37 Ho: µ= 37 Ha: H#37 Find the test statistic. t= -0.39 (Type an integer or decimal rounded to two decimal places as needed.) Find the p-value. p (Type an integer or decimal rounded to three decimal places as needed.)
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