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2 years ago

(1 + )1⁄3 + (1 − )1⁄3 = 21⁄3

Mathematics

1 answer:

ryzh [129]2 years ago

8 0

Ok what are you confused on

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A set of solar batteries is used in a research satellite. The satellite can run on only one battery, but it runs best if more th

zavuch27 [327]

Answer:

Hence, we reject H_0 as There is sufficient evidence to show that population variance is not 23

Step-by-step explanation:

From the question we are told that:

Sample size $n=30$

Variance $\sigma= 16.8$

Significance Level $\alpha=0.05$

$\sigma = 23$

Genet=rally the Hypothesis are as follows

Null $H_0=\sigma^2=23$

Alternative $H_a=\sigma^2 \neq 23$

Generally the equation for Chi distribution t is mathematically given by

t test statistics

$X^2=\frac{(n-1)\sigma}{\sigma^2}$

$X^2=\frac{(30-1)16.8^2}{23}$

$X^2=355.86$

Therefore

Critical Value

$P_{\alpha,df}$

Where

$df=29$

$P_{\alpha,df}=16.0471 and 45.7223$

$X^2=45.7223$

Hence, we reject H_0 as There is sufficient evidence to show that population variance is not 23

8 0

2 years ago

Help plz will give brainliest if correct

kolezko [41]

Answer:

-7+u+8t

Step-by-step explanation:

2-7=-5-2=-7

2t+6t=8t

u is alone, no other u values

so it’s -7+u+8t

6 0

3 years ago

A. 6 B. ⟌50 C. ⟌34 D. 4 Which one?

AfilCa [17]

Answer:

Step-by-step explanation:

3^2 + 5^2 = x^2

9 + 25 = x^2

x^2 = 34

x = sqrt(34)

so the answer is C

6 0

3 years ago

Solve for j. 2j - k= 5

Andreas93 [3]

Answer:

j=1/2k+5/2

Step-by-step explanation:

2j−k=5

Step 1: Add k to both sides.

2j−k+k=5+k

2j=k+5

Step 2: Divide both sides by 2.

2j/2=k+5/2

j=1/2k+5/2

6 0

3 years ago

Which set is a function?

Margarita [4]

B is a function because a function cannot have an X value with more than one Y value.

8 0

3 years ago