Answer:
There is enough evidence to support the claim that the population mean is greater than 100
Step-by-step explanation:
<u>Step 1</u>: We state the hypothesis and identify the claim
and
(claim)
<u>Step 2</u>: Calculate the test value.


<u>Step 3</u>: Find the P-value. The p-value obtained from a calculator is using d.f=39 and test-value 1.126 is 0.134
<u>Step 4</u>: We fail to reject the null hypothesis since P-value is greater that the alpha level. (0.134>0.05).
<u>Step 5</u>: There is enough evidence to support the claim that the population mean is greater than 100.
<u>Alternatively</u>: We could also calculate the critical value to obtain +1.685 for
and d.f=39 and compare to the test-value:
The critical value (1.685>1.126) falls in the non-rejection region. See attachment.
NB: The t- distribution must be used because the population standard deviation is not known.
42 * 0.18 = $7.56
She gave the barbar $7.56 in tip
Respuesta:
P = 16; Q = 24
P = 0; Q = 0
Explicación paso a paso:
Dada la relación:
8 (2x + 3) = Px + Q
Abra el soporte
16x + 24 = Px + Q
Los valores de P y Q para los que la ecuación tiene infinidad de solución:
Px = 16x
Q = 24
Por tanto, en P = 16; Q = 24, la ecuación tiene infinidad de soluciones.
Valores de P y Q para los que la ecuación no tiene solución:
Px = 0; P = 0
Q = 0
Por tanto, los valores de P y Q para los que la ecuación no tiene solución es 0