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Tcecarenko [31]
3 years ago
12

A market research analyst claims that 32% of the people who visit the mall actually make a purchase. You think that less than 32

% buy something and decide to test the claim. You stand by the exit door of the mall starting at noon and ask 82 people as they are leaving whether they bought anything. You find that only 20 people made a purchase.
Required:
a. State the null and alternative hypotheses to test that less than 32% of man visitors make a purchase.
b. Find the value of the test statistics z.
c. The p-value of the test is about:______
Mathematics
1 answer:
Ksju [112]3 years ago
4 0

Answer:

p=32 p<32

Step-by-step explanation:

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What is the probability of drawing a king and a diamond from a standard deck of cards
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Answer:

P(king or diamond) = P(king) + P(diamond) - P(king and diamond) P(king or diamond) = (4/52) + (13/52) - (1/52) P(king or diamond) = 16/52 Page 5 P(king or diamond) = 4/13.

3 0
2 years ago
The product of a number and 7 is less than 28.
Debora [2.8K]

Answer:

3.9 or less

Step-by-step explanation:

This is because 4 times 7 is equal to 28, so it has to be less than that!

4 0
3 years ago
Who ever complete this gets brainlist and i WILL remember to give you​
Romashka [77]

Answer:

1. <em>6</em>

2. There will be two middle numbers. 18 and 4. Add them

(18+4)=22

Now divide by 2

(22/2)

Ans. 11

3. There will be two middle numbers. 50 and 30. Add them

(50+30)=70

Now divide by 2

(70/2)

Ans. 35

4. 26

5. 76

6. There will be two middle numbers. 11 and 10. Add them

(11+10)=21

Now divide by 2

(21/2)

Ans. 10.5

7. There will be two middle numbers. 5 and 1. Add them

(5+1)=6

Now divide by 2

(6/2)

Ans. 3

8. There will be two middle numbers. 2 and 4. Add them

(2+4)=6

Now divide by 2

(6/2)

Ans. 3

║

((7, 15, 12, 9, 7))

Mean: =50/5 Ans. 10

Mode: = (7, 7, 9, 12, 15) Ans. 7

Median: Ans. 12

((10, 8, 4, 5, 8, 5, 7))

Mean: =47/7 Ans. 6.71

Mode: = (4 , 5 , 5 , 7 , 8 , 8 , 10) Ans. 5 and 8

Median: (5+8) =13/2 Ans. 6.5

((4 , 8 , 11, 11, 12, 12, 12, 12,)

Mean: 82/8 Ans. 10.25

Mode: Ans. 12

Median= (11+12)= 23/2 Ans. 11.5

((7, 5, 11, 7, 12, 8, 6, 9, 7))

Mean: 72/9 Ans. 8

Mode: (5, 6, 7, 7, 7, 8, 9, 11, 12) Ans. 7

Median: Ans. 12

4 0
3 years ago
A bag of potatoes weighs 9.42 pounds on a weighing scale. Which of the significant digits in the scale reading is the least reli
Misha Larkins [42]

A bag of potatoes weighs 9.42 pounds on a weighing scale.

In order to find least significant digit we have these rules,

1. The leftmost non zero digit is the most significant digit.

2. If there is no decimal point, the rightmost non zero digit is the least significant digit.

3. If there is a decimal point, the rightmost digits is the least significant digit even if it is a zero.

4. All digits between the least and most are also significant digits.

In our case rule number 3 is to be applied.

Our number is 9.42, the rightmost digits that is 2 is the least significant digits.

5 0
3 years ago
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