Question

Business Statistics Assignment:

Hypothesis Testing

Multiple Parts/Steps

A. Set a target.
B. Set a tail probability that the target exceeds expectations (the tail of the distribution beyond the UPPER/lower bounds!)
C .Calculate a z or t score (depending on....): (mean - target) / sample standard deviation
D. Calculate the tail probability of the z or t score
E. If the tail probability of the z or t score is smaller than the target probability, then yes your team has exceeded expectations with a probability of being wrong equal to the tail probability of the z or t score.

PLEASE HELP!!!!!!

Answer 1

The hypothesis being tested is:

H0: µd = 0

Ha: µd > 0

New	Standard
49	54
56	42
70	63
83	77
83	83
64	51
84	82
63	54
67	62
79	71
88	82
48	50
52	41
73	67
52	57
73	70
78	72
64	62
71	64
42	44
51	44
56	42
40	35
81	73
65.292	mean New
60.083	mean Standard
5.208	mean difference (New - Standard)
5.340	std. dev.
1.090	std. error
24	n
23	df
4.778	t
0.00004	p-value (one-tailed, upper)

The p-value is 0.00004.

Since the p-value (0.00004) is less than the significance level (0.05), we can reject the null hypothesis.

Therefore, we can conclude that the new therapeutic procedure was more effective than standard treatment.