Previous Question Question 14 of 20 Next Question A company randomly surveys 15 VIP customers and records their customer satisfaction scores out of a possible 100 points. Based on the data provided, calculate a 90% confidence interval to estimate the true satisfaction score of all VIP customers.

71.4699, 81.7301.

Step-by-step explanation:

So, the following are the scores: 74

90

84

78

61

65

62

67

73

75

76

95

71

98

80

The length of the score : 15

Then, let the size of the scores be n : 15.

Then, we have to find the mean.

2 x t divided by n

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.