State your decision to the significance test in terms of the null hypothesis. Consumer data reports that 50% of shoppers who enter a store on Black Friday end up making a purchase. In order to receive a bonus for their efforts, the marketing department of an electronics retailer must show that their stores have exceeded this proportion. A random sample of 320 Black Friday customers found that 176 of them ending up making a purchase. Use the following results and a 0.01 significance level to state your decision about Ho- Но :p = 0.50 H1 :p> 0.50 Test statistic: z = 1.79 p-value = 0.0368 O Do not reject H1 Do not reject Ho Reject Ho Reject H1

Q: O 19 05 O 14 17 3x-26

A: The given figure is:

Q: 48! a!44! 12. Ealuate .

A: To evaluate the given  (48!)/(2!*44!)

Q: determine the value of c(n,5) /p(n,5) where n can be any integer thats 5 or greater

A: Recall the following. Permutations Number of permutations of n things taken r at a time: pn,r=n!n-r!…

Q: 止星期五由23:59编辑 得分 100 提較 外部工具 Question Given the graph of the function f(x) below, use a left Riemann…

A:

Q: 10) lim

A:

Q: 7.) 10² - 15i*

A:

Q: 11. C(10, 8) ANSWER ! 45

A: We have to find given value.

Q: 3. Prove that if m divides n, then p(m) divides p(n).

A:

Q: 12 2. lim

A: To compute

Q: 4. Suppose that P(A)=0.7 and P(B)= 0.5, and P([AUBY) =0.1. Find a) P(AOB) b) P(A| B) c) P(B|A)

A: Given data,P(A)=0.7P(B)=0.5P(A∪B)' =0.1P(A∪B)=1-P(A∪B)'=1-0.1=0.9

Q: • Suppose that a coach must select 5 players to play on a basketball team. • The coach has 12…

A: Given that there are 3 players who can play center. So we can choose center in 3 ways only.  When…

Q: 7. f : N2 → N.

A: (1) N2 ={(m,n): m,n∈N}     This is the sketch of the bijection f:N2 →N The curve which is traced on…

Q: What is (1,2, 3) х (4,5, 6)? A) (2,4, 7) В) (— 3,6, —3) С) 32 D) (4, 10, 18)

A: To determine the cross product.

Q: 2. Find n and a if: Inx² + In2= In ax"+1

A: Given equation is lnx2+ln2=lnaxn+1. We have to find the value of n and a. Used formula: lnmn=nlnm…

Q: V5n – 10 = n- 2

A: Square both sides and solve the quadratic equation to get the value of n.

Q: I have a bucket of n green balls labeled 1, 2, . . . , n. I have another bucket of red balls labeled…

A: The events are occurring simultaneously. So,  Total combinations=combinations for green…

Q: Prove the following: (A → B) ^ (B → A) (D ∨ E) → B A → (~E ∧ C) ———————— ∴~E

A: We prove the given argument by using rules of inference.