Find the p-value for a left-tailed hypothesis test with a test statistic of z= -1.55. decide whether to reject upper h 0h0 if the level of significance is α=0.10.

p-value = round to four decimal places asneeded

0.0606

Step-by-step explanation:

Given that test statistic for a left tailed test is

z=-1.55

Significance level = 0.10

let us find p value from z value

p value for left tailed is

0.060571

Since p value < 0.10 our alpha, we reject null hypothesis.

p value = 0.0606

Conclusion:  Reject null hypothesis.

There is statistical evidence to show that sample mean is less than population mean.

(0,,,0)

step-by-step explanation:

the table of x and y values is shown in the attached pic(part of question)

we have to decide according that graph

given points are (0, 0) (–1, 0), (2, 0)

when we graph these points on graph they show an increasing line as shown in the attached pic