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RB

Answered

Determine the Lagrange multiplier.

A) 80.34
B) 90.34
C) 17.96
D) 5.17

On Jul 18, 2024


C
RB

Answered

In a 4 × 3 factorial design,how many levels are in the first grouping factor?

A) 3
B) 4
C) 7
D) 12

On Jul 17, 2024


B
RB

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Breanne sews for a clothing manufacturer. She is paid $7.50 per hour plus a piece rate that depends on the type of garment in production. The current production run is men's shirts, for which she is paid $3.00 for each unit exceeding her quota of 20 shirts in an 8-hour shift. What will be her total pay for a regular workweek in which her output on successive days was 24, 26, 27, 28, and 30 shirts?

On Jun 18, 2024


$405.00
RB

Answered

The variance of a portfolio of two investments will be equal to the sum of the variances of the two investments when the covariance between the investments is zero.

On Jun 17, 2024


True
RB

Answered

There are two main categories of hypotheses.They are ______.

A) null and research hypotheses
B) null and sample hypotheses
C) research and population hypotheses
D) research and sample hypotheses

On May 18, 2024


A
RB

Answered

Use the sample data below to test whether car colour affects the likelihood of being in an accident.Use a 5% level of significance.  Red  Blue  White  Car has been in  accident 283336 Car has not been  in accident 232230\begin{array} { c | l c c } & \text { Red } & \text { Blue } & \text { White } \\\hline \begin{array} { c } \text { Car has been in } \\\text { accident }\end{array} & 28 & 33 & 36 \\\begin{array} { c } \text { Car has not been } \\\text { in accident }\end{array} & 23 & 22 & 30\end{array} Car has been in  accident  Car has not been  in accident  Red 2823 Blue 3322 White 3630

On May 17, 2024


H0: Car colour and being in an accident are independent. HA: Car colour and being in an accident are not independent. Test statistic: χ2 = 0.4287 P-value = 0.8071 Fail to reject the null hypothesis.There is not sufficient evidence to warrant rejection of the claim that car colour and being in an accident are independent.