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Georgia [21]
3 years ago
13

Jason went shopping.

Mathematics
1 answer:
Leno4ka [110]3 years ago
4 0
<span>0.85 (pw+38)= £53.55
pw+38=63
63-38 =£25 </span>
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The mean work week for engineers in start-up companies is claimed to be about 64 hours with a standard deviation of 8 hours. Kar
blondinia [14]

Answer:

1.) mean

2.) H0 : μ = 64

3.) 0.0028

4) Yes

Step-by-step explanation:

Null hypothesis ; H0 : μ = 64

Alternative hypothesis ; H1 : μ < 64

From the data Given :

70; 45; 55; 60; 65; 55; 55; 60; 50; 55

Using calculator :

Xbar = 57

Sample size, n = 10

Standard deviation, s = 7.14

Test statistic :

(xbar - μ) ÷ s/sqrt(n)

(57 - 64) ÷ 8 / sqrt(10)

Test statistic = - 2.77

Pvalue = (Z < - 2.77) = 0.0028 ( Z probability calculator)

α = 10% = 0.1

Reject H0 ; if P < α

Here,

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<em>Reduce the greatest common factor for both sides of the inequality.</em>

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y = mx + b

m = slope or rate of change

b = y-intercept

x = input

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Write an equation in slope-intercept form? (12,5); y=2/3x-1
Marina86 [1]

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