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liubo4ka [24]
3 years ago
15

A multiple regression model has ___

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

C. More than one independent variable

Step-by-step explanation:

The difference between linear regression model and multiple regression model is that the linear regression has just one independent variable which is use to determine the dependent variable. While the multiple regression model has at least two or more independent variable which is use to determine the dependent variable.

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In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed sinc
coldgirl [10]

Answer:

Note: The full question is attached as picture below

a) Hо : p = 0.71

Ha : p ≠ 0.71

<em>p </em>= x / n

<em>p </em>= 91/110

<em>p </em>= 0.83.

1 - Pо = 1 - 0.71 = 0.29.

b) Test statistic = z

= <em>p </em>- Pо / [√Pо * (1 - Pо ) / n]

= 0.83 - 0.71 / [√(0.71 * 0.29) / 110]

= 0.12 / 0.043265

= 2.77360453

Test statistic = 2.77

c) P-value

P(z > 2.77) = 2 * [1 - P(z < 2.77)] = 2 * 0.0028

P-value = 0.0056

∝ = 0.01

P-value < ∝

Reject the null hypothesis.  There is sufficient evidence to support the researchers claim at the 1% significance level.

6 0
3 years ago
Anthony has to practice his guitar for 1.75 hours each morning and 2.5 hours each evening for the first 4 days this week. How ma
weqwewe [10]

Answer:

17 hours

Step-by-step explanation:

From the above question,

Anthony is practicing 4 days in a week

Hence

The number of hours he practices in the morning for 4 days =

1.75 hours × 4

= 7 hours

The number of hours he practices in the evening for 4 days =

2.5 hours × 4

= 10 hours

Therefore, the total number of hours he practices this week

= 7 hours + 10 hours

= 17 hours

5 0
3 years ago
Help me pleaaaassssseee
lesya692 [45]
Add the amount of choices, and divide by the number of customers surveyed.

40 + 32 + 8 + 20 = 100

40 customers were surveyed

100/40 = 2.5

The average number should be D) 2.5

hope this helps
6 0
3 years ago
A food pantry is making packages. Each package weighs 64 pounds. Each of their packages contains 4 identical bags of rice and a
Vinil7 [7]

Answer:

64 = 4x + 7         Each bag of rice weighs 14.25 pounds.

Step-by-step explanation:

Each package is 64 pounds, which give us one side of the equal sign. The other side is ehre we make the 64 pounds. There is one 7 pound bag of beans, and four equal bags of rice. To find the pounds per bag of rice, we do 64-7 to get 57, then 57/4 to get 14.25

7 0
3 years ago
If m = 5, what is the value of the expression 2m + 17?
KIM [24]

Answer:

2(5)+17 = 27

Step-by-step explanation:

Hope this helps answer your question(s). Please mark brainliest and enjoy the rest of your day!

8 0
2 years ago
Read 2 more answers
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