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2 years ago

5

Brian plays a video game in which he starts at 0 points. In round 1, he

1 answer:

fredd [130]2 years ago

3 0

At this point, brian had lost 7 points.

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Please Help me with the problem please!

evablogger [386]

Answer:

35%

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2 years ago

Lexie, a bowler, claims that her bowling score is more than 140 points, on average. Several of her teammates do not believe her,

Crazy boy [7]

Answer:

The test statistic is $t = 3.744$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 140$

The The level of significance is $\alpha = 0.05$

The sample size is n = 18

The null hypothesis is $H_o : \mu = 140$

The alternative hypothesis is $H_a : \mu > 140$

The sample mean is $\= x = 155$

The standard deviation is $\sigma = 17$

Generally the test statistics is mathematically represented as

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

substituting values

$t = \frac{ 155 - 140 }{ \frac{ 17 }{ \sqrt{18} } }$

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3 years ago

Given: p: 7x+1=8 q: 3x+4=7 p->q write the inverse in if-then form

Lady_Fox [76]

X= 1 .........................

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