If null hypothesis is tested that Weight variable has no effect on Price of Mac Book, t-statistic is 5.52 and associated probability of 0.002.

Question 9 options:

	It difficult to decide. There is not enough details given.
	Weight and Price are not related in this situation.
	We should reject null hypothesis that Weight has no effect on Price at probability of 0.05 level.
	We should accept null hypothesis that Weight has no effect on Price at probability of 0.05 level.

Question 10 (1 point)

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Coefficient of Cores variable is 10.397. That means,

Question 10 options:

	It is not possible to conclude anything.
	Each Mac Book has capacity of about 10 Cores.
	Mac Books have lot of Cores built-in.
	You are expected to pay $41.588 for Mac Book with four Cores and $83.176 for Mac Book with eight Cores.

Question 11 (1 point)

If null hypothesis is tested that Cores variable has no effect on Price of Mac Book, t-statistic is 0.22 and associated probability of 0.824.

Question 11 options:

	We should reject null hypothesis that Cores has no effect on Price at probability of 0.05 level.
	We should accept null hypothesis that Cores has no effect on Price at probability of 0.05 level.
	It difficult to decide. There is not enough details given.
	Cores is required element of any Mac Book.

Question 12 (1 point)

Coefficient of RAM variable is 54.005. That means,

Question 12 options:

	Mac Book should have 54 Giga-bytes of RAM
	It is not possible to conclude anything.
	RAM is short-supply because of supply-chain challenges.
	Mac Book with 8 Giga-bytes of RAM, you are expected to spend $432.04.