The following information is obtained for a sample of 25 observations taken from a population. SS = 305.100, s. = 0.971, and ŷ = 275.26 – 3.75x a. Make a 95% confidence interval for B. Round your answers to two decimal places. The 95% confidence interval for Bis ( ). b. Using a significance level of 0.01, test whether Bis negative. B negative. c. Testing at the 5% significance level. Can you conclude that B is different from zero? B different from zero. d. Test if Bis different from -4.80. Use a = 0.01. B different from -4.80. and Media € is is not

Question
The following information is obtained for a sample of 25 observations taken from a population.
SS = 305.100, s. = 0.971, and ŷ = 275.26 – 3.75x
a. Make a 95% confidence interval for B.
Round your answers to two decimal places.
The 95% confidence interval for Bis (
).
b. Using a significance level of 0.01, test whether Bis negative.
B
negative.
c. Testing at the 5% significance level. Can you conclude that B is different from zero?
B
different from zero.
d. Test if Bis different from -4.80. Use a = 0.01.
B
different from -4.80.
and Media
€ is
is not
Expand
Transcribed Image Text

The following information is obtained for a sample of 25 observations taken from a population. SS = 305.100, s. = 0.971, and ŷ = 275.26 – 3.75x a. Make a 95% confidence interval for B. Round your answers to two decimal places. The 95% confidence interval for Bis ( ). b. Using a significance level of 0.01, test whether Bis negative. B negative. c. Testing at the 5% significance level. Can you conclude that B is different from zero? B different from zero. d. Test if Bis different from -4.80. Use a = 0.01. B different from -4.80. and Media € is is not

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