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tatuchka [14]
3 years ago
8

A random sample of 103 observations produced a sample mean of 30. Find the critical and observed values of Z for the following t

est of hypothesis using a equals 0.05. The population standard deviation is known to be 6 and the population distribution is normal.

Mathematics
1 answer:
True [87]3 years ago
4 0

ok this it easy you will have to dvide and time and subs to my chanel THERE IS THAT APP CALL PHOTO MATH DOWNLOAD AND YOU WILL GET THE RIGHT ANSWER

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pav-90 [236]
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5 0
3 years ago
Need help ASAP!!!!!!
ki77a [65]

Answer:

D) The function is always decreasing

Step-by-step explanation:

As you move along the x axis, the x value approaches: a) negative infinity when x < 0 and b) 0 when x > 0

8 0
3 years ago
Four polynomials are shown below:
7nadin3 [17]
C. It is fifth degree because the highest power in it is 5. It is a binomial because there are two terms in it.

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3 0
4 years ago
A group of twelve friends went bowling. The regular price was $8.00. The bowling alley offered a discount price of $6.00 to coll
olga2289 [7]

Answer:

x = friends that paid discount price = 8

y = friends that paid regular price = 4

Step-by-step explanation:

Let

x = friends that paid discount price

y = friends that paid regular price

x + y = 12 (1)

6x + 8y = 80 (2)

From (1)

x = 12 - y

Substitute x = 12 - y into (2)

6x + 8y = 80 (2)

6(12 - y) + 8y = 80

72 - 6y + 8y = 80

- 6y + 8y = 80 - 72

2y = 8

y = 8/2

y = 4

Substitute y = 4 into (1)

x + y = 12 (1)

x + 4 = 12

x = 12 - 4

x = 8

x = friends that paid discount price = 8

y = friends that paid regular price = 4

4 0
3 years ago
Use the distributive property to write an expression equivalent to 15(5+n)
Ratling [72]
The answer is i beleve 75+15n
8 0
3 years ago
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