Please help, what the correct answer to part c of the first picture? Also please

Question

Please help, what the correct answer to part c of the first picture?

Also please what is the answer to part a of the secon picture?

A real estate analyst estimates the following regression, relating a house price to its square footage (Sqft): Uso Table4 Price 48.58+52.73Saft: SSE 56,969, n 50 In an attempt to improve the results, he adds two more explanatory variables: the number of bedrooms (Beds) and the number of bathrooms (Baths). The estimated regression equation is Price 28.40+40.73Sqft + 10.77Beds+ 16.79Baths; SSE 48,413, n 50 a. Choose the appropriate hypotheses to determine whether Beds and Baths are jointly significant in explaining Price. Ho: B23 0: HA: At least one of the coefficients is nonzero. Ho: ?2 = ?3 = 0; HA: At least one of the coefficients is greater than zero. O HO: ?1 ?2-?3-0; HA: At least one of the coefficients is nonzero. b. Calculate the value of the test statistic. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Test statistic 4.065 C. At the 5% significance level, find the critical value. (Use the appropriate Excel function to calculate the critical value. Round your answer to 2 decimal places.) Critical value

Explanation / Answer

Que.1

C) Here f has 2 and 46 df.

Numerator has 2 degrees of freedom because we equate only two beta' s to zero. And denominator has n-p = 50-4= 46 df.

Critical value of f = 3.2 at 5% l.o.s.

Que.2

A) y hat = 0

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