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Gekata [30.6K]
3 years ago
11

Based on the output when testing to see if the population mean heart rate of UK students is not equal to 80, identify the follow

ing.
a. Identify the alternative and null hypothesis.
b. Identify the sample mean.
c. Identify the sample standard deviation.
d. Identify the standard error.
e. Identify the t value.
f. Identify the p-value – called Sig.(2-tailed) in SPSS.
g. Make your decision (Reject H0 or Fail to Reject H0 ) at   .05 .
h. Interpret the result
Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Answer:

Step-by-step explanation:

a)  H_o: mu =80\\H_a: mu not equals 80\\

b) Sample mean is the average of sample

c) std deviation of the sample

d) std dev/sq rt n

e) (sample mean - mu)/std error

f) p value = prob with test statistic

g) If p < alpha, reject H0.

h) If rejected, there is evidence that significant difference between population mean and sample mean.

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I need help fast pleasee
trapecia [35]

Answer:

<em>y = - cos ( </em>\frac{3}{4}<em> x + </em>\frac{\pi }{4}<em> ) </em>

Step-by-step explanation:

y = A cos ( Bx + C) + D

Vertical shift D = 0

A = - 1

Compression / Stretching B

Period of given function is \frac{8\pi }{3}

Period of cos x is 2π

\frac{8\pi }{3} = \frac{2\pi }{B} ⇒ B = \frac{3}{4}

Horizontal shift is C ÷ B

Horizontal shift of given function is \frac{\pi }{3}

\frac{\pi }{3} = C ÷ \frac{3}{4} ⇒ C = \frac{\pi }{4}

So, the equation of given function is

<em>y = - cos ( </em>\frac{3}{4}<em> x + </em>\frac{\pi }{4}<em> ) </em>

4 0
2 years ago
If x + 10 = 70, what is x?<br> Α. 40<br> B. 50<br> C. 60<br> D. 70<br> E. 80
Helen [10]

Answer:

C.60

x + 10 = 70

x = 70 -10

x =60

4 0
2 years ago
Read 2 more answers
During batting practice, Lenora hit 60% of the 20 pitches that were thrown to her. What fraction of the pitches thrown did Lenor
expeople1 [14]

Answer:

A 3/5

Step-by-step explanation:Here’s one way to solve this problem.

Write sixty percent as a fraction having a denominator of one hundred.

Now, change sixty-hundredths to an equivalent fraction having a denominator of twenty, the total number of pitches.

Do this by dividing the numerator and the denominator by five.

Then, simplify the fraction twelve-twentieths by dividing the numerator and the denominator by four.

So, Lenora hit three-fifths of the pitches.

6 0
2 years ago
Which polygon is a pentagon? A 4-sided figure. A 6-sided figure. A 5-sided figure. A 4-sided figure.
kaheart [24]

Answer:

A Pentagon is a 5 sided figure

Step-by-step explanation:

I hope this helps

3 0
2 years ago
Read 2 more answers
Find the percent increase from 200 to 240
vlabodo [156]

Answer:

  20%

Step-by-step explanation:

The percentage change can be found from ...

  % change = ((new value)/(reference value) -1) × 100%

  = (240/200 -1) × 100%

  = 0.20 × 100%

  = 20%

240 is an increase of 20% from 200.

3 0
3 years ago
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