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2 years ago

A local little league has a total of 65 players, of whom 40% are right-handed. How many

Mathematics

2 answers:

viva [34]2 years ago

7 0

26 players are right handed

Karo-lina-s [1.5K]2 years ago

7 0

Answer:

26 right-handed players

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Identify the CONCLUSION of a hypothesis test of the following claim and sample data: Claim: "The average annual household income

Hatshy [7]

Complete Question

The options for the above question is

a There is not sufficient evidence to warrant rejection of the claim.

b There is sufficient evidence to warrant rejection of the claim.

c There is sufficient evidence to support the claim.

d There is not sufficient evidence to support the claim.

Answer:

Option A is correct

Step-by-step explanation:

From the question we are told that

The population mean is $\mu =$ $47,500

The sample size is $n = 86$

The sample mean is $\= x =$ $48,061

The standard deviation is $\sigma =$ $2,351

The level of significance is $\alpha = 0.02$

The null hypothesis is

$H_o : \mu =$ $47,500

The alternative hypothesis is

$H_a : \mu \ne$ $47,500

The critical value of $\alpha$ from the t-Distribution table is $Z_{\frac{\alpha }{2} } = 2.326$

Now the test statistics is mathematically evaluated as

$t = \frac{\= x - \mu }{ \frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{48061 - 47500 }{\frac{2351}{\sqrt{86} } }$

$t = 2.21$

Now from the values obtained we can see that

$Z_{\frac{\alpha }{2} } > t$

hence we fail to reject the null hypothesis

Hence there is not sufficient evidence to warrant rejection of the claim

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3 years ago

What is the area? Thank u for helping!

olganol [36]

To find the area, do 2+2+2+4+5
To find the volume, do 2×2×2×4×5

4 0

2 years ago

Read 2 more answers

Run

Morgarella [4.7K]

what a question do u have

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2 years ago

-5(4x-2)=-2(3+6x) multi step equation

Oliga [24]

Answer:

X=2, please mark me brainliest

Step-by-step explanation:

−5(4x−2)=−2(3+6x)

(−5)(4x)+(−5)(−2)=(−2)(3)+(−2)(6x)(Distribute)

−20x+10=−6+−12x

−20x+10=−12x−6

Step 2: Add 12x to both sides.

−20x+10+12x=−12x−6+12x

−8x+10=−6

Step 3: Subtract 10 from both sides.

−8x+10−10=−6−10

−8x=−16

Step 4: Divide both sides by -8.

−8x

−8

−16

−8

x=2

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3 years ago

Annabelle owns a small business selling clothing. She knows that in the last week 56 customers paid cash, 26 customers used a de

frosja888 [35]

Answer

23/51

Step-by-step explanation:

The probability of the next customer paying with a debit or credit card is =23/51

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1 year ago

A local little league has a total of 65 ​players, of whom 40​% are right​-handed. How many

A local little league has a total of 65 players, of whom 40% are right-handed. How many